An adjustment mechanism for the rotary wheel of a foam material cutting machine

Abstract

This application discloses an adjustment mechanism for the rotating wheel of a foam material cutting machine, relating to the technical field of cutting machines. It includes a support base housed within an upper housing, a crossbar mounted on the support base, and an upper wheel coaxially rotatably mounted at one end of the crossbar. The support base also includes an adjustment component for adjusting the height of the crossbar. This application, through flexible control of the crossbar height via the adjustment component, allows for real-time adjustment of the distance between the upper and lower wheels, effectively compensating for fatigue elongation of the steel belt due to long-term use and preventing the steel belt from loosening.

Description

Technical Field

[0001] This application relates to the technical field of cutting machines, and in particular to an adjustment mechanism for the rotary wheel of a foam material cutting machine. Background Technology

[0002] Foamed materials are porous materials formed by heating and foaming polyurethane slurry as raw material. Due to their excellent properties such as light weight, sound insulation, and shock absorption, they are widely used in the automotive manufacturing industry to produce various interior parts, including but not limited to front and rear carpets, trunk liners, engine hoods, roof frames, and armrests, which can meet the production needs of interior parts for different car models.

[0003] In the current processing of foamed materials, a specialized cutting machine is required to cut and shape them. (Refer to...) Figure 1 The core cutting structure of the existing foam material cutting machine (100) consists of an upper wheel (300) located in the upper housing (200), a lower wheel (400) located at the bottom of the frame, and an annular steel belt (500) (serving as a cutting blade) wound around the upper wheel (300) and the lower wheel (400), forming a closed loop belt system. The steel belt is wound between the upper wheel (300) and the lower wheel (400), and is driven by a drive device (600) (such as a rotary motor) to rotate the upper wheel (300) or the lower wheel (400), so that the steel belt (500) circulates along a preset trajectory, thereby continuously cutting the foam material conveyed to the worktable (700). Among them, the tension of the steel belt directly affects the cutting accuracy and efficiency, and is a key factor in ensuring the cutting quality; however, the existing cutting machine has a significant defect in long-term use: the steel belt gradually elongates due to fatigue during repeated cyclical motion, resulting in a decrease in tension and loosening. This problem directly causes the steel belt to vibrate, deviate, or have insufficient cutting force during the cutting process. This not only reduces the cutting accuracy of the foamed material (such as dimensional deviation and uneven cross-section), but may also exacerbate component wear due to slippage between the steel belt and the wheel, shorten the service life of the equipment, increase production and maintenance costs, and have an adverse impact on the large-scale production of automotive interior parts. Utility Model Content

[0004] In view of the above-mentioned prior art, in order to solve the problem that the steel strip of the foam material cutting machine is not sufficiently tensioned and loose due to fatigue elongation caused by long-term use, which in turn affects the cutting accuracy and efficiency, aggravates component wear, and increases production and maintenance costs, this application provides an adjustment mechanism for the rotor of the foam material cutting machine.

[0005] The adjustment mechanism for the rotary wheel of a foam material cutting machine provided in this application adopts the following technical solution: An adjustment mechanism for a rotating wheel of a foam material cutting machine includes a support base disposed in an upper housing, a crossbar disposed on the support base, an upper wheel coaxially rotatably disposed on the crossbar, and an adjustment component for adjusting the height of the crossbar disposed on the support base.

[0006] By adopting the above technical solution, the height position of the crossbar can be changed by adjusting the components, which can drive the upper wheel to rise and fall synchronously, thereby adjusting the distance between the upper wheel and the lower wheel, and realizing the adjustment of the tension of the steel strip wound between the two, effectively solving the problem of loosening of the steel strip due to fatigue elongation.

[0007] Preferably, a horizontally arranged mounting plate is formed on the support base, and the adjustment assembly includes a first screw and an elastic element. The first screw is vertically arranged, and the bottom end of the first screw passes through the top surface of the mounting plate and is threadedly connected to the crossbar. A limiting component is coaxially fixed at the top end of the first screw, and the elastic component is located between the limiting component and the mounting plate, with both ends of the elastic component contacting the bottom surface of the limiting component and the top surface of the mounting plate, respectively.

[0008] By adopting the above technical solution, when the height of the upper wheel needs to be adjusted, the first screw is rotated. The first screw is threadedly connected to the crossbar, and the crossbar, restricted by the support seat, cannot rotate synchronously with the screw. Therefore, the rotational motion of the screw can be converted into the vertical lifting motion of the crossbar. The elastic element is always in a compressed state between the limiting element and the mounting plate. Its elastic force will generate downward pressure on the limiting element, which will then be transmitted to the crossbar through the first screw. This ensures that the crossbar maintains a stable position after adjustment, reduces height deviation caused by vibration and other factors, and ensures the stability of the steel strip tension.

[0009] Preferably, the support base is further provided with a limiting component for limiting the crossbar. The limiting component includes a fixed block and a sliding block. The fixed block is vertically mounted on the support base. A protrusion is provided on the side of the fixed block opposite to the support base in the vertical direction. The sliding block is provided with a sliding groove for sliding cooperation with the protrusion. The side of the sliding block opposite to the fixed block is connected to the crossbar. The sliding block is also provided with a fixing member.

[0010] By adopting the above technical solution, the limiting component guides the lifting and lowering movement of the crossbar. Through the sliding cooperation of the protrusion and the slide groove, the crossbar is restricted to move only vertically, preventing horizontal deviation or rotation during adjustment. This ensures that the axis of the upper wheel remains parallel to the axis of the lower wheel, guaranteeing uniform force on the steel strip and further improving cutting stability. Simultaneously, the fixing component can fix the sliding block and the fixing block relative to each other after the crossbar is adjusted to the appropriate position, preventing accidental displacement of the crossbar due to external forces during equipment operation.

[0011] Preferably, the fixing element is a bolt, and a threaded through hole is provided on the side wall of the sliding block. One end of the bolt passes through the threaded through hole and is pressed against the side wall of the protrusion.

[0012] By adopting the above technical solution and using bolts as fasteners, the structure is simple and the operation is convenient. By tightening the bolts, the end of the bolts is tightly abutted against the side wall of the protrusion, and the friction between the two is used to fix the sliding block and the fixed block. When adjustment is required, the bolts can be loosened to release the fixation, which facilitates quick secondary adjustment and improves operating efficiency.

[0013] Preferably, a second screw is vertically mounted on the mounting plate, the bottom end of the second screw passes through the mounting plate and is threadedly connected to the end of the crossbar away from the upper wheel, and a rotating handle is provided at the top end of the second screw.

[0014] By adopting the above technical solution, the end of the crossbar furthest from the upper wheel can be independently adjusted via the second screw. When the crossbar tilts due to uneven force or installation errors, rotating the second screw allows for individual adjustment of the height of that end, keeping the crossbar horizontal and ensuring consistent height at both ends of the upper wheel. This prevents the steel belt from experiencing uneven wear or misalignment due to the upper wheel's tilt. The rotating handle increases the contact area between the hand and the screw, making rotation easier and more convenient.

[0015] Preferably, the elastic element is a spring, which is sleeved on the first screw, and the annular steel strip is in a taut state in its natural state.

[0016] By adopting the above technical solution, the spring, as an elastic element, has advantages such as good elasticity, low cost, and easy availability. Furthermore, its placement on the first screw prevents lateral displacement during compression or extension, ensuring that its elastic force is always vertically downward. The spring's natural tension allows it to immediately generate pre-pressure on the limiting component after installation, ensuring that the adjusting assembly provides stable support to the crossbar in its initial state.

[0017] Preferably, the limiting member is a rotating handle, and the bottom surface of the rotating handle abuts against the top end of the spring.

[0018] By adopting the above technical solution, and by setting the limiting component as a rotating handle, the first screw can be driven to rotate directly by rotating the handle without the need for additional tools, thus simplifying the adjustment operation process. At the same time, the bottom surface of the rotating handle is pressed against the top of the spring, which can evenly transmit the spring force to the first screw, ensuring the force stability of the adjustment component.

[0019] In summary, this application includes at least one of the following beneficial technical effects: 1. By adjusting the height of the crossbar, the upper wheel can be raised and lowered synchronously, thereby adjusting the distance between the upper and lower wheels and adjusting the tension of the steel strip wound between them, effectively solving the problem of loosening of the steel strip due to fatigue elongation. 2. When the height of the upper wheel needs to be adjusted, rotate the first screw. The first screw is threadedly connected to the crossbar, and the crossbar is restricted by the support seat and cannot rotate synchronously with the screw. Therefore, the rotational motion of the screw can be converted into the vertical lifting motion of the crossbar. The elastic element is always in a compressed state between the limiting element and the mounting plate. Its elastic force will exert downward pressure on the limiting element, which will then be transmitted to the crossbar through the first screw. This allows the crossbar to maintain a stable position after adjustment, reducing height deviation caused by vibration and other factors, and ensuring the stability of the steel strip tension. 3. The limiting component guides the lifting and lowering movement of the crossbar. Through the sliding cooperation of the protrusion and the slide groove, the crossbar is restricted to vertical movement, preventing horizontal deviation or rotation during adjustment. This ensures that the axis of the upper wheel remains parallel to the axis of the lower wheel, guaranteeing uniform force on the steel strip and further improving cutting stability. Simultaneously, the fixing component secures the sliding block and the fixed block after the crossbar is adjusted to the appropriate position, preventing accidental displacement of the crossbar due to external forces during equipment operation. Attached Figure Description

[0020] Figure 1 These are the accompanying drawings of the prior art in the background section; Figure 2 This is to show a schematic diagram of the installation location of the adjustment mechanism; Figure 3 This is a schematic diagram of the overall structure of this utility model.

[0021] Reference numerals: 1. Support base; 11. Mounting plate; 2. Crossbar; 3. Adjustment assembly; 31. First screw; 32. Elastic element; 321. Spring; 4. Limiting element; 41. Rotating handle; 5. Limiting assembly; 51. Fixing block; 511. Protrusion; 52. Sliding block; 521. Slide groove; 6. Fixing element; 61. Bolt; 7. Second screw. Detailed Implementation

[0022] This application discloses an adjustment mechanism for the rotary wheel of a foam material cutting machine.

[0023] Reference Figure 2 and Figure 3 An adjustment mechanism for a foam material cutting machine wheel includes a support base 1 disposed in an upper housing, a horizontal bar 2 disposed on the support base 1, an upper wheel rotatably mounted on one end of the horizontal bar 2, and an adjustment component 3 disposed on the support base 1 for adjusting the height of the horizontal bar 2.

[0024] When adjusting the tension of the annular steel belt, the operator operates the adjusting component 3. Under the driving force of the adjusting component 3, the crossbar 2 will change height around the support base 1 or along the preset track on the support base 1. If it is necessary to increase the tension of the steel belt, the crossbar 2 drives the upper wheel to move upward, at which time the vertical distance between the upper wheel and the lower wheel increases, and the annular steel belt is further tightened; if it is necessary to decrease the tension, the crossbar 2 drives the upper wheel to move downward, the vertical distance between the upper wheel and the lower wheel decreases, and the tension of the steel belt is relieved.

[0025] Specifically, a horizontally arranged mounting plate 11 is formed on the support base 1, a crossbar 2 is located below the mounting plate 11, and an adjustment assembly 3 is located on the mounting plate 11. The adjustment assembly 3 includes a first screw 31 and an elastic element 32. The first screw 31 is vertically arranged on the top of the mounting plate 11, and the bottom end of the first screw 31 penetrates the top surface of the mounting plate 11 and is threadedly connected to the crossbar 2. A limiting element 4 is provided at the top end of the first screw 31, and the elastic element 32 is located between the limiting element 4 and the mounting plate 11, with both ends of the elastic element 32 abutting against the bottom surface of the limiting element 4 and the top surface of the mounting plate 11, respectively.

[0026] Furthermore, the support base 1 is also equipped with a limiting component 5 for limiting the crossbar 2. The limiting component 5 includes a fixed block 51 and a sliding block 52. The fixed block 51 is vertically installed on the support base 1 and located below the mounting plate 11. A protrusion 511 is provided vertically on the side of the fixed block 51 facing away from the support base 1. The sliding block 52 is located on the side of the fixed block 51 facing away from the support base 1. A sliding groove 521 is provided on the sliding block 52 for sliding cooperation with the protrusion 511. The crossbar 2 is located on the side of the sliding block 52 facing away from the fixed block 51. The crossbar 2 is fixedly connected to the sliding block 52 by bolts 61. When in use, the operator rotates the limiting component 4 clockwise, causing the first screw 31 to rotate synchronously. Since the first screw 31 is threadedly connected to the crossbar 2, and the crossbar 2 is constrained by the limiting component 5 and cannot rotate with the screw, the rotation of the screw is converted into an upward linear movement of the crossbar 2. At this point, the screw gradually rotates out of the crossbar 2, pushing the crossbar 2 upward along the guide direction of the limiting component 5, thereby causing the upper wheel to move upward, increasing the vertical distance with the lower wheel, and the annular steel belt is tightened, increasing the tension. At the same time, the elastic element 32 between the limiting component 4 and the mounting plate 11 is further compressed, generating a reverse elastic force, which not only provides preload to the screw, but also, after adjustment, can offset part of the reverse tension of the steel belt through the elastic force, enhancing structural stability.

[0027] The elastic element 32 is a spring 321, which is sleeved on the end of the first screw 31 away from the crossbar 2. One end of the spring 321 abuts against the mounting plate 11, and the other end abuts against the limiting element 4. In its natural state, the annular steel belt is taut. The elastic force generated by the pre-compression of the spring 321 is directly transmitted to the crossbar 2 after installation, so that the upper wheel always applies a basic tension force to the steel belt, avoiding slippage and vibration caused by the steel belt not being taut during the initial start-up of the equipment, and ensuring that the cutting operation is in a stable state from the beginning.

[0028] The limiting component 4 is a rotating handle 41, which is fixedly connected to the top end of the first screw 31, and the bottom surface of the rotating handle 41 abuts against the top end of the spring 321.

[0029] Specifically, the sliding block 52 is equipped with a fixing element 6, which is a bolt 61. There are two bolts 61. Two threaded through holes are opened on the side wall of the sliding block 52, and one end of the bolt 61 passes through the threaded through hole and abuts against the side wall of the protrusion 511. After the steel strip tension is adjusted, the positions of the crossbar 2 and the sliding block 52 are fixed. At this time, tighten the bolt 61 so that one end abuts against the side wall of the protrusion 511. The friction between the bolt 61 and the protrusion 511 can be used to firmly fix the sliding block 52 in the current position, preventing the sliding block 52 from sliding along the protrusion 511 due to the vibration of the steel strip, tension or slight shaking of the equipment itself during operation. This ensures the stability of the upper wheel position, thereby maintaining the constant tension of the steel strip and preventing the decrease in cutting accuracy caused by the displacement of the sliding block 52 during the cutting process.

[0030] A second screw 7 is vertically mounted on the mounting plate 11, positioned at the top of the mounting plate 11. The bottom end of the second screw 7 passes through the mounting plate 11 and is threadedly connected to the end of the crossbar 2 furthest from the upper wheel. A rotating handle 41 is located at the top of the second screw 7. The second screw 7 allows for independent adjustment of the end of the crossbar 2 furthest from the upper wheel. When the crossbar 2 tilts due to uneven force or installation errors, rotating the second screw 7 can individually adjust the height of that end of the crossbar 2, keeping it horizontal and ensuring that the heights of both ends of the upper wheel are consistent. This prevents the steel belt from experiencing one-sided wear or misalignment due to the tilt of the upper wheel.

[0031] The implementation principle of this application embodiment is as follows: In the initial state of the equipment, the spring 321 in its natural state keeps the steel strip at a preset tension. During adjustment, the height of the crossbar 2 is changed by rotating the handle 41 of the first screw 31 to adjust the tension of the steel strip. The limiting component 5 ensures that the crossbar 2 rises and falls along a preset trajectory. After adjustment, the sliding block 52 bolt 61 is tightened to lock the position. The second screw 7 can calibrate the horizontality of the crossbar 2. During long-term operation, the spring 321 buffers vibration and compensates for the elongation of the steel strip. Through adjustment, guidance, locking, and compensation, the components work together to ensure the stability of the steel strip tension, improve cutting accuracy and equipment life.

[0032] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An adjustment mechanism for the rotary wheel of a foam material cutting machine, characterized in that, It includes a support base (1) set in the upper housing, a crossbar (2) set on the support base (1), an upper wheel coaxially rotatably set on the crossbar (2), and an adjustment component (3) for adjusting the height of the crossbar (2) set on the support base (1).

2. The adjusting mechanism for the rotary wheel of a foam material cutting machine according to claim 1, characterized in that, A horizontally arranged mounting plate (11) is formed on the support base (1). The adjustment component (3) includes a first screw (31) and an elastic element (32). The first screw (31) is vertically arranged. The bottom end of the first screw (31) passes through the top surface of the mounting plate (11) and is threadedly connected to the crossbar (2). The first screw (31) has a limiting member (4) coaxially fixed at its top end. The elastic member (32) is located between the limiting member (4) and the mounting plate (11), and the two ends of the elastic member (32) are in contact with the bottom surface of the limiting member (4) and the top surface of the mounting plate (11), respectively.

3. The adjusting mechanism for the rotary wheel of a foam material cutting machine according to claim 2, characterized in that, The support base (1) is also provided with a limiting component (5) for limiting the crossbar (2). The limiting component (5) includes a fixing block (51) and a sliding block (52). The fixing block (51) is vertically installed on the support base (1). The side of the fixing block (51) away from the support base (1) is provided with a protrusion (511) in the vertical direction. The sliding block (52) is provided with a sliding groove (521) for sliding cooperation with the protrusion (511). The side of the sliding block (52) away from the fixing block (51) is connected to the crossbar (2). The sliding block (52) is also provided with a fixing member (6).

4. The adjusting mechanism for the rotary wheel of a foam material cutting machine according to claim 3, characterized in that, The fixing member (6) is a bolt (61), and a threaded through hole is provided on the side wall of the sliding block (52). One end of the bolt (61) passes through the threaded through hole and abuts against the side wall of the protrusion (511).

5. The adjusting mechanism for the rotary wheel of a foam material cutting machine according to claim 2, characterized in that, A second screw (7) is vertically arranged on the mounting plate (11). The bottom end of the second screw (7) passes through the mounting plate (11) and is threadedly connected to the end of the crossbar (2) away from the upper wheel. A rotating handle is provided at the top end of the second screw (7).

6. The adjusting mechanism for the rotary wheel of a foam material cutting machine according to claim 2, characterized in that, The elastic element (32) is a spring (321), which is sleeved on the first screw (31). In its natural state, the annular steel strip of the spring (321) is in a tensioned state.

7. The adjusting mechanism for the rotary wheel of a foam material cutting machine according to claim 6, characterized in that, The limiting member (4) is a rotating handle (41), and the bottom surface of the rotating handle (41) abuts against the top of the spring (321).

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