A rubber-jointed narrow V-belt joint cutting tool holder

Abstract

This utility model provides a rubber band narrow V-belt cutting tool holder, belonging to the technical field of rubber product processing equipment. It includes a base, a clamping assembly, and a lifting cylinder as the power source, offering fast response and adjustable pressure. It can flexibly adapt to the thickness and hardness of the rubber belt. The stable support of the top plate prevents pressure deviation and forms a double fixation with the positioning assembly. Each connecting block is equipped with a buffer spring, which absorbs the impact of the cylinder's downward pressure through elastic deformation. This prevents the rubber belt from being deformed by rigid pressure and adapts to material thickness deviations, maintaining a constant clamping force. The rotating clamping roller converts sliding friction into rolling friction, significantly reducing material wear. It also accommodates minor position adjustments before cutting, allowing operation without loosening the assembly. Furthermore, the symmetrical layout design ensures uniform force and flatness in the width direction of the material, effectively avoiding defects such as slanted cuts and burrs during cutting, ensuring the quality of the finished product's cross-section.

Description

Technical Field

[0001] This utility model relates to the technical field of rubber product processing equipment, and in particular to a rubber band narrow V-belt band cutting tool holder. Background Technology

[0002] In the rubber products manufacturing industry, especially in the production of rubber banded narrow V-belts, precise cutting of grouped rubber belts is required to ensure product dimensional accuracy and quality. Traditional cutting methods often employ simple mechanical clamping devices combined with manual or semi-automatic cutting tools. For example, some older equipment simply uses ordinary clamps to fix the rubber belt, and then the cutting is done manually. This approach has many shortcomings, such as inaccurate positioning, unstable clamping force, and inability to adapt to rubber belts of different thicknesses and hardnesses. With the expansion of production scale and the improvement of product quality requirements, the market urgently needs a cutting tool holder that can achieve high-precision positioning, stable clamping, and adaptability to various working conditions. Although there are some improved equipment on the market, most still cannot meet the needs of efficient and precise production, especially in mass production, where positioning deviation and cutting quality issues are more prominent.

[0003] A search revealed that the document with publication number "CN211729305U" states that "this utility model relates to the field of V-belt production and processing technology, and in particular to a V-belt forming and cutting device, including a worktable and a dual-axis motor. The dual-axis motor is fixedly connected to the center of the front end face of the worktable. A threaded rod is fixedly connected to the end of the main shaft of the dual-axis motor. A threaded sleeve is spirally connected to the outer side of the threaded rod. A limiting sleeve is fixedly connected to the other end of the threaded sleeve. A moving rod is fixedly connected to the inner side of the limiting sleeve. A push frame is slidably connected to the outer side of the moving rod. A support sleeve is slidably connected to the upper and lower sides of the right end face of the push frame." In use, the dual-axis motor, limiting sleeve, moving rod, and limiting post drive the threaded rod to rotate, thereby moving the threaded sleeve and ultimately the limiting sleeve. This adjusts the spacing between the support sleeves to ensure stability during material feeding, making it suitable for cutting materials of different sizes.

[0004] However, traditional cutting blade holders lack an effective positioning mechanism, which makes it easy for the raw material to shift during clamping. This makes it difficult to accurately align the cutting centerline with the center of the raw material, thus affecting the accuracy of the cutting dimensions. At the same time, the driving method of some equipment cannot guarantee a continuous and uniform power output, which is prone to power fluctuations. This leads to inconsistent clamping force of the positioning clamping blocks, resulting in uneven force on the raw material and increasing cumulative errors. Furthermore, for rubber belts of different thicknesses and hardnesses, the existing equipment's clamping components cannot flexibly adjust the pressure, which can easily lead to indentation deformation or insufficient clamping of the rubber belt, affecting the cutting quality.

[0005] Therefore, we provide a rubber-jointed narrow V-belt joint cutting tool holder to solve the above problems. Utility Model Content

[0006] To overcome the above deficiencies, this utility model provides a rubber-jointed narrow V-belt joint cutting tool holder, which aims to solve the problems mentioned above.

[0007] To achieve the above objectives, this utility model provides the following technical solution: A rubber-coated narrow V-belt cutting tool holder includes a base, a conveying roller mounted on the front side of the base, an inclined plate mounted on the rear side of the base, a positioning assembly fixedly connected to the upper end of the base, the positioning assembly including a fixing block fixedly connected to the upper end of the base, a positioning clamping block provided inside the fixing block, a threaded rod provided inside the positioning clamping block, a drive motor connected to the right side of the threaded rod via a flat key, and a clamping assembly provided behind the fixing block, the clamping assembly including a bracket provided behind the fixing block, a top plate fixedly connected to the upper end of the bracket.

[0008] As a further description of the above technical solution: There are six sets of conveying rollers arranged in parallel inside the front side of the base. The conveying rollers are cylindrical and their surfaces are covered with a polyurethane anti-slip layer. The inclined plate is a rectangular plate structure made of stainless steel. The angle between the inclined plate and the base is 30 degrees, and the surface of the inclined plate is covered with a smooth and wear-resistant coating.

[0009] As a further description of the above technical solution: There are two sets of positioning clamps, and the two sets of positioning clamps are symmetrically arranged. The threaded rod passes through the two sets of positioning clamps, and the threads on both sides of the surface of the threaded rod are arranged in opposite directions. The drive motor drives the positioning clamps to move to the middle position through the threaded rod.

[0010] As a further description of the above technical solution: A lifting cylinder is fixedly connected to the upper end of the top plate, and a lifting plate is fixedly connected to the output end of the lifting cylinder. A connecting block is provided at the lower end of the lifting plate. The connecting blocks are arranged in groups of two and are symmetrically distributed on the left and right sides of the lower end of the lifting plate.

[0011] As a further description of the above technical solution: A buffer spring is fixedly connected to the inner side of the upper surface of the connecting block. The buffer springs are in groups of four, and each two groups of buffer springs correspond to one connecting block. A pressing roller is provided below the lifting plate. The pressing roller is rotatably connected to the connecting block. The pressing roller has a cylindrical structure, and its outer surface is covered with a rubber anti-slip layer.

[0012] As a further description of the above technical solution: The support has a frame on the rear side, the frame is made of steel, and the inner wall of the frame has a groove. The groove is a rectangular groove structure and the inner wall of the groove is coated with a smooth and wear-resistant coating.

[0013] As a further description of the above technical solution: A cutting cylinder is installed at the upper end of the frame, and a cutting blade is fixedly connected to the output end of the cutting cylinder. A cutting groove is provided below the cutting blade, and the width of the cutting groove is adapted to the thickness of the cutting blade. A control box is installed on the left side of the frame.

[0014] Compared with the prior art, the beneficial effects of this utility model are: By setting up a positioning component, using a combination of a drive motor, a keyed connection, and a threaded rod, electrical energy can be stably converted into mechanical energy without loss, providing a continuous and uniform driving force for the positioning clamps. This avoids positioning deviations caused by power fluctuations. The threaded rod and the two sets of symmetrical positioning clamps, with their positive and negative threads, can achieve synchronous clamping towards the center. This ensures uniform force on the raw material, precise alignment of the center with the cutting center line, and shortens the positioning time, making it suitable for mass production. At the same time, the track limit provided by the fixed block prevents the positioning clamps from moving around. Combined with the anti-slip design on the inner side of the clamps, this further prevents the raw material from sliding after clamping, effectively reducing cumulative errors and ensuring consistent positioning references each time, laying a core foundation for accurate cutting dimensions.

[0015] By setting up a clamping assembly with a lifting cylinder as the power source, the system offers fast response and adjustable pressure, flexibly adapting to the thickness and hardness of the rubber belt. The stable support of the top plate also prevents pressure deviation and forms a double fixation with the positioning assembly. Each connecting block is equipped with a buffer spring, which absorbs the impact of the cylinder's downward pressure through elastic deformation. This prevents the rubber belt from being deformed due to rigid pressure and adapts to the thickness deviation of the raw material, maintaining a constant clamping force. The rotating clamping roller converts sliding friction into rolling friction, significantly reducing material wear. It also accommodates minor position adjustments before cutting, allowing operation without loosening the assembly. In addition, the symmetrical layout design ensures uniform force and flatness in the width direction of the raw material, effectively avoiding defects such as slanted cuts and burrs during cutting and ensuring the quality of the finished product's cross-section. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall appearance structure of this utility model; Figure 2 This is a schematic diagram of the overall rear structure of this utility model; Figure 3 This is a schematic diagram of the positioning component structure of this utility model; Figure 4 This is a schematic diagram showing the disassembled structure of the clamping component of this utility model.

[0017] The following components are labeled in the diagram: 1. Base; 2. Conveyor roller; 3. Inclined plate; 4. Positioning assembly; 401. Fixing block; 402. Positioning clamping block; 403. Threaded rod; 404. Drive motor; 5. Pressing assembly; 501. Bracket; 502. Top plate; 503. Lifting cylinder; 504. Lifting plate; 505. Connecting block; 506. Buffer spring; 507. Pressing roller; 6. Frame; 7. Slide groove; 8. Cutting cylinder; 9. Cutting blade; 10. Cutting groove; 11. Control box. Detailed Implementation

[0018] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figure 1-4 As shown, this utility model provides a technical solution: a rubber-coated narrow V-belt cutting blade holder, including a base 1, a conveying roller 2 installed on the front side of the base 1, an inclined plate 3 installed on the rear side of the base 1, a positioning component 4 fixedly connected to the upper end of the base 1, the positioning component 4 including a fixing block 401 fixedly connected to the upper end of the base 1, a positioning clamping block 402 provided on the inner side of the fixing block 401, a threaded rod 403 provided on the inner side of the positioning clamping block 402, a drive motor 404 connected to the right side of the threaded rod 403 by a flat key, a pressing component 5 provided on the rear side of the fixing block 401, the pressing component 5 including a bracket 501 provided on the rear side of the fixing block 401, and a top plate 502 fixedly connected to the upper end of the bracket 501.

[0020] Furthermore, six sets of conveyor rollers 2 are arranged in parallel inside the front side of the base 1. The conveyor rollers 2 are cylindrical structures with a polyurethane anti-slip layer on their surface. The inclined plate 3 is a rectangular plate structure made of stainless steel. The angle between the inclined plate 3 and the base 1 is 30 degrees, and the surface of the inclined plate 3 is coated with a smooth and wear-resistant coating. The base 1 bears the weight of all components, including the conveyor rollers 2, inclined plate 3, and positioning components 4, to prevent vibration from affecting the accuracy during processing. The conveyor rollers 2 utilize the polyurethane anti-slip layer on their surface to increase the static friction with the raw materials and prevent slippage. The six sets are arranged in parallel to achieve multi-point synchronous conveying, ensuring that the material is evenly stressed and does not shift. The inclined plate 3, with its 30° inclination angle and smooth and wear-resistant coating, uses the weight of the finished product to achieve automatic flow guidance. At the same time, the stainless steel material ensures that the structure is corrosion-resistant and wear-resistant, extending its service life.

[0021] Furthermore, two sets of positioning clamping blocks 402 are provided, and the two sets of positioning clamping blocks 402 are symmetrically arranged. The threaded rod 403 passes through the two sets of positioning clamping blocks 402. The threads on both sides of the surface of the threaded rod 403 are arranged in opposite directions. The drive motor 404 drives the positioning clamping blocks 402 to move towards the middle position through the threaded rod 403. The drive motor 404 converts electrical energy into mechanical energy and transmits torque to the threaded rod 403 through a flat key connection, so as to realize the stable rotation of the threaded rod 403. The threaded rod 403 and the positioning clamping blocks 402 are engaged by positive and negative threads, which converts the rotational motion of the threaded rod 403 into the linear motion of the positioning clamping blocks 402 along the inner track of the fixed block 401. When the two sets of symmetrical positioning clamping blocks 402 move towards the middle, a uniform clamping force is applied to ensure positioning accuracy.

[0022] Furthermore, a lifting cylinder 503 is fixedly connected to the upper end of the top plate 502, and a lifting plate 504 is fixedly connected to the output end of the lifting cylinder 503. A connecting block 505 is provided at the lower end of the lifting plate 504. Two connecting blocks 505 are arranged as a group and are symmetrically distributed on the left and right sides of the lower end of the lifting plate 504. The lifting cylinder 503 uses compressed air as a power source to convert air pressure energy into linear motion of the piston rod. The top plate 502 provides fixed support for the lifting cylinder 503 to ensure that the output force of the lifting cylinder 503 is vertically stable. The lifting cylinder 503 is fixedly connected to the lifting plate 504 through the piston rod to transmit power to the lifting plate 504. Then, the lifting plate 504 transmits the motion synchronously to the two sets of connecting blocks 505 to realize the lifting drive of the pressing component 5.

[0023] Furthermore, a buffer spring 506 is fixedly connected to the inner side of the upper surface of the connecting block 505. Four buffer springs 506 are grouped together, and every two groups of buffer springs 506 correspond to one connecting block 505. A pressing roller 507 is provided below the lifting plate 504. The pressing roller 507 is rotatably connected to the connecting block 505. The pressing roller 507 has a cylindrical structure, and its outer surface is covered with a rubber anti-slip layer. The buffer spring 506 on the connecting block 505 utilizes its elastic deformation characteristics to absorb the impact of the downward pressure of the lifting cylinder 503 on one hand, avoiding rigid contact that could damage the raw material. On the other hand, the spring force balances the cylinder pressure, keeping the pressing force of the pressing roller 507 on the raw material constant. The rotatable connection between the pressing roller 507 and the connecting block 505 converts the sliding friction between the material and the roller into rolling friction, reducing material wear and facilitating fine-tuning of the material while maintaining a pressed state.

[0024] Furthermore, a frame 6 is provided on the rear side of the bracket 501. The frame 6 is made of steel, and a groove 7 is provided on the inner wall of the frame 6. The groove 7 is a rectangular groove structure, and the inner wall of the groove 7 is coated with a smooth and wear-resistant coating. The frame 6 is made of steel, which has high strength and high rigidity characteristics to withstand the impact force of the cutting cylinder 8 and the reaction force of the cutting blade 9 when it is working, preventing the frame 6 from deforming and affecting the cutting accuracy. The groove 7 on the inner wall of the frame 6 restricts the movement direction of the cutting blade 9 through the rectangular groove structure, ensuring that the cutting blade 9 moves only in the vertical direction. The smooth and wear-resistant coating on the inner wall of the groove 7 reduces the frictional resistance between the cutting blade 9 and the groove 7, extending the service life of the guide structure.

[0025] Furthermore, a cutting cylinder 8 is installed at the upper end of the frame 6, and a cutting blade 9 is fixedly connected to the output end of the cutting cylinder 8. A cutting groove 10 is provided below the cutting blade 9, and the width of the cutting groove 10 is adapted to the thickness of the cutting blade 9. A control box 11 is installed on the left side of the frame 6. The cutting cylinder 8 is powered by compressed air and provides sufficient cutting impact force to the cutting blade 9 through the rapid extension and retraction of the piston rod, ensuring smooth cutting of the narrow V-belt of the rubber band. The width of the cutting groove 10 is adapted to the thickness of the cutting blade 9, which not only provides the blade with clearance space after cutting, but also further restricts the blade's left and right displacement through the side wall of the groove. The lateral positioning of the pre-positioning component 4, the material fixing of the clamping component 5, and the vertical guidance of the slide 7 work together to ensure accurate cutting dimensions.

[0026] Working Principle: During use, the rubber strip narrow V-belt material to be cut is first placed on the conveyor roller 2 on the front side of the base 1. Six sets of parallel conveyor rollers 2 convey the material smoothly towards the positioning component 4 on the rear side through multi-point synchronous conveying. When the material reaches the inner side of the fixed block 401 of the positioning component 4, the drive motor 404 drives the threaded rod 403 to rotate through the key connection. With the help of the positive and negative threads of the threaded rod 403 and the two sets of symmetrical positioning clamping blocks 402, the positioning clamping blocks 402 move towards the center along the inner track of the fixed block 401, applying a uniform clamping force to the material to complete the lateral positioning. After positioning, the lifting cylinder 503 on the top plate 502 of the pressing component 5 converts the air pressure energy into linear motion, driving the lifting plate 504 and the connecting blocks 505 on the left and right sides to move down, so that the pressing roller 507 rotatably connected below the connecting block 505 contacts the material. The buffer spring 506 on the connecting block 505, through... Elastic deformation absorbs impact and maintains constant clamping force, while the rotational characteristics of the clamping roller 507 reduce material wear. Subsequently, the cutting cylinder 8 at the upper end of the frame 6 pushes the piston rod to drive the cutting blade 9 to move vertically downward along the slide groove 7 on the inner wall of the frame 6, cooperating with the cutting groove 10 with a matching width to cut the raw material. The positioning component 4, the clamping component 5 and the slide groove 7 work together to ensure accurate cutting dimensions. After cutting, the cutting cylinder 8 and the lifting cylinder 503 respectively drive the cutting blade 9 and the clamping roller 507 to reset. The drive motor 404 reverses to make the positioning clamp 402 release the finished product. The finished product slides down the inclined plate 3 on the rear side of the base 1 under its own gravity and is discharged. The entire process can be automatically controlled by the control box 11 on the left side of the frame 6. After one cut is completed, the conveyor roller 2 continues to transport the next batch of raw materials to achieve continuous operation. This completes the use process of a rubber-connected narrow V-belt connected cutting blade holder.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A rubber group narrow V belt group cutting tool rest, comprising a base (1), characterized in that: The front side of the base (1) is provided with conveying rollers (2), the rear side of the base (1) is provided with an inclined plate (3), the upper end of the base (1) is fixedly connected with a positioning assembly (4), the positioning assembly (4) comprises a fixed block (401) fixedly connected to the upper end of the base (1), the inner side of the fixed block (401) is provided with a positioning clamping block (402), the inner side of the positioning clamping block (402) is provided with a threaded rod (403), the right side of the threaded rod (403) is connected with a driving motor (404) through a flat key, the rear side of the fixed block (401) is provided with a pressing assembly (5), the pressing assembly (5) comprises a support (501) provided on the rear side of the fixed block (401), the upper end of the support (501) is fixedly connected with a top plate (502).

2. A rubber group narrow V belt group cutting tool according to claim 1, characterized in that, The conveying rollers (2) are provided in six groups and are parallelly distributed inside the front side of the base (1), the conveying rollers (2) are of cylindrical structure, and the surfaces thereof are wrapped with polyurethane anti-skid layers, the inclined plate (3) is of rectangular plate structure and is made of stainless steel, the angle between the inclined plate (3) and the base (1) is thirty degrees, and the surface of the inclined plate (3) is provided with a smooth wear-resistant coating.

3. A rubber group narrow V belt group cutting tool according to claim 1, wherein The positioning clamping blocks (402) are provided in two groups and are symmetrically arranged, the threaded rod (403) penetrates through the two groups of positioning clamping blocks (402), the threads on the two sides of the surface of the threaded rod (403) are oppositely arranged, and the driving motor (404) drives the positioning clamping blocks (402) to move to the middle position through the threaded rod (403).

4. A rubber group narrow V belt group cutting tool according to claim 1, wherein The upper end of the top plate (502) is fixedly connected with a lifting cylinder (503), the output end of the lifting cylinder (503) is fixedly connected with a lifting plate (504), the lower end of the lifting plate (504) is provided with a connecting block (505), the connecting blocks (505) are provided in two groups and are symmetrically arranged on the left and right sides of the lower end of the lifting plate (504).

5. A rubber group narrow V belt group cutting tool according to claim 4, wherein The inner side of the upper surface of the connecting block (505) is fixedly connected with a buffer spring (506), the buffer springs (506) are provided in four groups, and each two groups of buffer springs (506) correspond to one connecting block (505), the lower side of the lifting plate (504) is provided with a pressing roller (507), the pressing roller (507) is rotatably connected with the connecting block (505), the pressing roller (507) is of cylindrical structure, and the outer surface of the pressing roller (507) is wrapped with a rubber anti-skid layer.

6. A cutting tool for a rubber v-belt set according to claim 1, wherein The rear side of the support (501) is provided with a rack (6), the rack (6) is made of steel, the inner wall of the rack (6) is provided with a sliding groove (7), the sliding groove (7) is of rectangular groove structure, and the inner wall of the sliding groove (7) is provided with a smooth wear-resistant coating.

7. A rubber group narrow V belt group cutting tool according to claim 6, wherein The upper end of the frame (6) is provided with a cutting cylinder (8), the output end of the cutting cylinder (8) is fixedly connected with a cutting blade (9), the lower side of the cutting blade (9) is provided with a cutting groove (10), the width of the cutting groove (10) is matched with the thickness of the cutting blade (9), and the left side of the frame (6) is provided with a control electric box (11).

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