A soft material cutting and clamping device

Abstract

The utility model relates to the field of leather processing equipment, concretely is a kind of soft material cutting clamp cutter device. To solve the problem that traditional clamp cutter device cutter mould replacement is complicated, angle position is not adjustable and taper block is exposed, the device sets base guide rail linkage movement rack, and movable base is slidably connected with guide rail through strip-shaped sliding block. Axle core support is fixed on movable base both sides, clamp cutter main axle core is fixed seat through bearing and penetrates, its bottom is integrally formed multiple clamping cores for the joint of cutter mould, and down spring presses down and presses down lever and opens clamping core, and cutter mould is in clamping state. Release clamp cylinder is controlled taper block lifting by down lever to release clamping core pressure to make clamp cutter head loose state by solenoid valve work;Rotary motor is driven clamp cutter main axle core rotation through synchronous pulley group, realizes cutter mould angle adjustment. Pressure adjusting nut can change spring compression amount to adjust clamping force. Simplify cutter mould dismounting process, improve angle position adjustment accuracy, and avoid taper block exposure damage.

Description

Technical Field

[0001] This utility model relates to the field of leather processing technology, and in particular to a cutting clamping device for soft materials. Background Technology

[0002] In the leather processing industry, leather cutting is a crucial step, as its quality directly affects the quality of subsequent leather products and production efficiency. The clamping device, as one of the core components of leather cutting equipment, plays a decisive role in the effectiveness of leather cutting.

[0003] Currently, common soft material cutting clamping devices on the market have many problems. On the one hand, regarding die replacement, many traditional clamping devices have cumbersome die replacement processes, requiring complex disassembly and installation operations using various tools. This not only consumes a lot of time and manpower but also easily leads to die damage, affecting production progress and costs. On the other hand, regarding die adjustment, most traditional clamping devices cannot flexibly adjust the orientation and position of the die, making it difficult to meet the requirements of different leather cutting processes for die angle and position. This results in uneven edges and inaccurate dimensions of the cut leather, reducing product quality and market competitiveness.

[0004] Most commercially available die-clamping devices work by pulling a tapered block upwards from below the main shaft of the clamping core, and then using a spring to lift and expand the clamping core to fix the die. However, existing technologies expose the tapered block, making it susceptible to foreign objects or corrosion, and also posing a risk of bending. Therefore, developing a die-clamping device for cutting soft materials that features convenient die replacement, flexible die adjustment, and adjustable clamping force is of significant practical importance. Utility Model Content

[0005] The purpose of this invention is to address numerous problems with existing clamping devices for cutting soft materials. On one hand, regarding die replacement, many traditional clamping devices involve cumbersome processes, requiring complex disassembly and installation using various tools. This not only consumes significant time and manpower but also easily damages the die, impacting production progress and costs. On the other hand, regarding die adjustment, most traditional clamping devices cannot flexibly adjust the die's orientation and position, failing to meet the requirements of different leather cutting processes for die angle and position. This results in uneven edges and inaccurate dimensions in the cut leather, reducing product quality and market competitiveness. Most clamping devices on the market use a tapered block positioned below the clamping core shaft, pulled upwards, and then a spring pulls the core upwards to fix the die. However, existing technologies suffer from drawbacks because the tapered block is exposed, making it susceptible to foreign objects or corrosion, and also carries the risk of bending. Therefore, this invention proposes a clamping device for cutting soft materials.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A flexible material cutting clamping device includes a base with a guide rail and a movable rack on its top;

[0008] The movable base is slidably connected to the guide rail via a strip slider located at its bottom;

[0009] The shaft support is fixedly installed on both sides of the movable base;

[0010] The fixed base is fixedly installed inside the movable base;

[0011] The bearing is fixedly installed inside the fixed base;

[0012] The clamping tool spindle core passes through the bearing and is rotatably connected;

[0013] Multiple cores are integrally formed at the bottom of the clamping tool spindle core;

[0014] The die-cutting mold is snapped onto the outer wall of the sandwich core;

[0015] The die release assembly, mounted on the shaft support, is used to control the clamping and releasing of the die;

[0016] A movable component is mounted on the movable base, and the movable base is driven to move horizontally through the meshing of the movable gear and the movable rack;

[0017] A drive assembly, mounted on the movable base, is used to drive the main spindle of the clamping tool to rotate in order to adjust the cutting angle of the die.

[0018] In one possible design, the knife release assembly includes a knife release cylinder fixed to the top of the shaft support, a core-pulling chuck connected to the piston rod of the knife release cylinder, a pressing rod passing through the core-pulling chuck, and a pressing tapered block fixed to the bottom of the pressing rod.

[0019] The side wall of the shaft support is provided with an elliptical hole, and the core-pulling chuck is guided by inserting a fixing rod into the elliptical hole;

[0020] The bottom of the pressure rod extends into the inside of the clamping tool spindle core, releasing the pressure on the clamping core when the pressure tapered block moves upward.

[0021] In one possible design, the moving component includes a drive motor fixed to the top of the moving base and a moving gear mounted on the output shaft of the drive motor.

[0022] The moving gear meshes with the moving rack on the top of the base, and when the drive motor rotates, it causes the moving base to slide along the guide rail.

[0023] In one possible design, the top of the die-cutting mold is provided with a movable slider, and the bottom of the base is provided with a strip groove, the movable slider and the strip groove forming an auxiliary sliding pair.

[0024] In one possible design, the drive assembly includes a rotary motor fixed to the top of the movable base, an active synchronizing pulley mounted on the output shaft of the rotary motor, a second synchronizing pulley fixed to the outer wall of the clamping tool spindle core, and a synchronizing belt connecting the active synchronizing pulley and the second synchronizing pulley.

[0025] In one possible design, a pressure regulating mechanism is also included, comprising:

[0026] A spring seat fixed to the top of the mounting base;

[0027] A pressure adjusting nut with threads penetrating the spring seat;

[0028] A downward pressure spring is located between the bottom of the pressure adjusting nut and the top of the clamping tool spindle core;

[0029] The rotating pressure adjusting nut can change the compression of the lower spring, thereby adjusting the clamping force of the clamping core on the die.

[0030] In one possible design, the mating surface between the strip slider and the guide rail is provided with a self-lubricating coating, and the gap between the movable slider and the strip groove is controlled within the range of 0.05-0.1mm.

[0031] In one possible design, when the release cylinder is activated, its upward stroke causes the downward pressing tapered block to completely disengage from the conical contact area of ​​the clamping core. At this time, the clamping core contracts radially by 1.5-2mm to form a die disassembly gap.

[0032] In this application, the unclipping cylinder is located above the core-pulling bracket and is connected to the clamping device through the core-pulling opening chuck. When the die needs to be replaced, the unclipping cylinder pulls the core-pulling chuck upward to drive the downward pressing tapered block connecting shaft, so that the tapered block is pulled upward. The core clamping head of the core clamping spindle loses the pressure of the tapered block and returns to a relaxed state. The die can be gently shaken to remove the die for replacement.

[0033] Furthermore, by starting a rotary motor, the output shaft of the rotary motor drives the active synchronous pulley to rotate. The active synchronous pulley drives the second synchronous pulley to rotate via a synchronous belt. The second synchronous pulley can drive the main shaft of the clamping tool to rotate, thereby adjusting the orientation of the die. Additionally, by starting a drive motor, the output shaft of the drive motor drives the moving gear to rotate. The moving gear meshes with the moving rack, allowing the moving base to slide on the top of the base, thereby adjusting the position of the die.

[0034] Beneficial effects: By incorporating a die-release assembly, when a die replacement is needed, the die-release cylinder lifts the core-pulling chuck upwards, causing the connecting shaft of the lower tapered block to move upwards. This pulls the tapered block upwards, causing the core-clamping head of the core-clamping spindle to lose pressure from the tapered block and return to a relaxed state. At this point, the die can be easily removed and replaced by gently shaking it. This design greatly simplifies the die-changing process, reduces changeover time, and improves production efficiency, making it particularly suitable for leather cutting operations that require frequent die changes.

[0035] In the drive assembly, the output shaft of the rotary motor drives the active synchronous pulley to rotate. The active synchronous pulley, via a synchronous belt, drives the second synchronous pulley to rotate, which in turn drives the main spindle of the clamping die to rotate, thus adjusting the orientation of the die. This function allows for flexible adjustment of the cutting angle of the die during leather cutting, based on different cutting requirements and leather texture direction, improving cutting accuracy and quality, and meeting diverse production requirements.

[0036] In the moving assembly, the output shaft of the drive motor rotates the moving gear, which meshes with the moving rack, causing the moving base to slide on top of the base, thereby adjusting the position of the die. This moving method is precise and reliable, ensuring that the die moves accurately to the designated position in the horizontal direction, facilitating precise cutting of leather, reducing cutting errors, and improving the product yield.

[0037] A spring seat is installed on the top of the fixed base, and a pressure adjusting nut is threaded through the spring seat. A compression spring is installed between the bottom of the pressure adjusting nut and the top of the clamping die spindle. By rotating the pressure adjusting nut, the compression of the compression spring can be adjusted, thereby changing the pressure of the clamping die spindle on the clamping core and adjusting the clamping force of the die. This function allows the die clamping device to adapt to the cutting needs of leather of different thicknesses and materials, ensuring the stability of the die during the cutting process, improving the cutting effect and extending the service life of the equipment.

[0038] The bottom of the movable base is equipped with multiple strip sliders that are slidably connected to the guide rail at the top of the base. The top of the die is equipped with a movable slider that is slidably connected to the strip groove at the bottom of the base. This double sliding guide structure provides stable support and precise guidance for the movement of the die, ensuring the smoothness and accuracy of the die during movement, reducing vibration and wear during equipment operation, and improving the overall stability and reliability of the equipment. Attached Figure Description

[0039] Figure 1 This is a three-dimensional structural schematic diagram of a soft material cutting clamping device proposed in this utility model;

[0040] Figure 2 This is a three-dimensional structural diagram from a second perspective of a soft material cutting clamping device proposed in this utility model.

[0041] Figure 3 This is an exploded view of the shaft support and die in a soft material cutting clamping device proposed in this utility model;

[0042] Figure 4 This is a three-dimensional structural diagram of the shaft support and the knife release cylinder in a soft material cutting clamping device proposed in this utility model.

[0043] Figure 5 This is a three-dimensional structural diagram of the movable base in a soft material cutting clamping device proposed in this utility model;

[0044] Figure 6 An exploded view of the rotary motor and synchronous belt in a soft material cutting clamping device proposed in this utility model;

[0045] Figure 7 This is an exploded view of the clamping blade spindle and the lower pressure rod in a soft material cutting clamping device proposed in this utility model;

[0046] Figure 8 This is an exploded view of the spring seat and the fixed seat in a soft material cutting clamping device proposed in this utility model.

[0047] In the diagram: 1. Base; 2. Guide rail; 3. Moving rack; 4. Shaft support; 5. Cylinder for releasing the tool; 6. Fixing rod; 7. Die; 8. Core-pulling chuck; 9. Moving base; 10. Moving slider; 11. Spring seat; 12. Oval hole; 13. Drive motor; 14. Strip slider; 15. Moving gear; 16. Rotary motor; 17. Drive synchronous pulley; 18. Motor seat; 19. Synchronous belt; 20. Second synchronous pulley; 21. Core clamp; 22. Tool clamping spindle core; 23. Lowering tapered block; 24. Lowering rod; 25. Pressure adjusting nut; 26. Bearing; 27. Fixing seat; 28. Lowering spring; 29. ​​Strip groove. Detailed Implementation

[0048] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0049] In one embodiment: Refer to Figure 1-8 A flexible material cutting clamping device is provided, which mainly consists of a base 1, a movable base 9, a shaft support 4, a fixed base 27, a bearing 26, a clamping main shaft 22, a clamping core 21, a cutting die 7, as well as a tool release assembly, a moving assembly, a driving assembly, etc.

[0050] The base 1 serves as the fundamental support component of the entire device, with a movable rack 3 and two symmetrically arranged guide rails 2 mounted on its top. A movable base 9 is slidably connected to the top of the base 1, and multiple strip-shaped sliders 14 are fixedly mounted on its bottom. These sliders 14 are slidably connected to the guide rails 2, ensuring the movable base 9 can slide smoothly on the base 1. Simultaneously, a movable slider 10 is fixedly mounted on the top of the die 7, and a strip-shaped groove 29 is formed at the bottom of the base 1. The movable slider 10 is slidably connected to the strip-shaped groove 29, further enhancing the stability of the die 7's movement.

[0051] The same shaft support 4 is fixedly installed on both sides of the movable base 9. A fixed seat 27 is fixedly installed inside the movable base 9. A bearing 26 is installed inside the fixed seat 27. The main shaft 22 of the clamping tool is fixedly installed inside the bearing 26, so that the main shaft 22 of the clamping tool can rotate stably within the fixed seat 27. Multiple clamping cores 21 are integrally formed at the bottom of the main shaft 22 of the clamping tool. The die 7 is snapped into the outer wall of the clamping core 21 to achieve the initial fixation of the die 7.

[0052] The tool release assembly is used to release the die 7 for replacement. The tool release cylinder 5 is fixedly mounted on the top of the spindle support 4, and its piston rod is fixedly mounted on a core-pulling chuck 8. A fixing rod 6 is fixedly mounted on one side of the core-pulling chuck 8. An elliptical hole 12 is opened on one side of the spindle support 4, and one end of the fixing rod 6 is inserted into the elliptical hole 12 to ensure the stability of the core-pulling chuck 8 during its up-and-down movement. A downward pressure rod 24 is fixedly inserted through the inside of the core-pulling chuck 8. The bottom of the downward pressure rod 24 extends into the main spindle core 22 of the tool holder, and a downward pressure taper block 23 is fixedly mounted at its bottom via threads. The downward pressure taper block 23 and the downward pressure rod 24 are used in conjunction with multiple core holders 21. When the die 7 needs to be replaced, the tool release cylinder 5 is activated via a solenoid valve. The piston rod of the tool release cylinder 5 pulls the core-pulling chuck 8 upward, causing the core-pulling chuck 8 to move the downward pressure rod 24 and the downward pressure taper block 23 upward, moving the downward pressure taper block 23 away from the core holders 21. At this point, the main spindle core clamping head of the core 21 loses the pressure of the downward taper block 23 and returns to a relaxed state. The operator only needs to gently shake the die 7 to remove it from the core 21 and replace it. The entire die 7 replacement process is simple and convenient, without the need for complicated disassembly and installation operations using multiple tools, which greatly saves time and manpower, reduces the risk of damage to the die 7, and ensures production progress and cost control.

[0053] The movable component controls the movement of the movable base 9 on top of the base 1, thereby adjusting the position of the die 7. The drive motor 13 is fixedly mounted on top of the movable base 9, and its output shaft is fixedly fitted with a movable gear 15, which meshes with a movable rack 3 on top of the base 1. When the position of the die 7 needs adjustment, the drive motor 13 is activated. The output shaft of the drive motor 13 drives the movable gear 15 to rotate. Since the movable gear 15 meshes with the movable rack 3, the rotation of the movable gear 15 drives the movable base 9 to slide along the guide rail 2 on top of the base 1. By controlling the forward and reverse rotation and the number of rotations of the drive motor 13, the direction and distance of movement of the movable base 9 can be precisely controlled, thereby achieving precise adjustment of the die 7's position. This meets the requirements of different leather cutting processes for the die 7's position, improving cutting accuracy and product quality.

[0054] The drive assembly drives the main spindle core 22 of the clamping tool to rotate, thereby adjusting the orientation of the die 7. A motor base 18 is fixedly mounted on the top of the movable base 9, and a rotary motor 16 is fixedly mounted on the top of the motor base 18, with its output shaft fixedly mounted on a drive synchronous pulley 17. A second synchronous pulley 20 is fixedly sleeved on the outer wall of the main spindle core 22, and the drive synchronous pulley 17 and the outer wall of the second synchronous pulley 20 are driven by the same synchronous belt 19. When the orientation of the die 7 needs to be adjusted, the rotary motor 16 is started. The output shaft of the rotary motor 16 drives the drive synchronous pulley 17 to rotate, which in turn drives the second synchronous pulley 20 to rotate via the synchronous belt 19. The second synchronous pulley 20 then drives the main spindle core 22 to rotate, causing the clamping core 21 at the bottom of the main spindle core 22 and the die 7 clamped on the clamping core 21 to rotate accordingly, thus achieving flexible adjustment of the die 7's orientation. This adjustment method allows for rapid changes in the cutting angle of the die 7 according to different cutting requirements and leather texture directions, ensuring neat edges and accurate dimensions of the cut leather, thereby enhancing the product's market competitiveness.

[0055] This application can be used in the field of leather processing, or in other fields applicable to this application.

[0056] In another embodiment: Reference Figure 1-8A flexible material cutting clamping device is disclosed, applicable in the leather processing field. A spring seat 11 is fixedly mounted on the top of a fixed base 27. A pressure adjusting nut 25 is threaded through the top of the spring seat 11. A common compression spring 28 is positioned between the bottom of the pressure adjusting nut 25 and the top of the clamping die 22. The compression of the compression spring 28 can be adjusted by rotating the pressure adjusting nut 25. When the compression of the compression spring 28 increases, the pressure on the clamping die 22 increases, and the clamping force of the clamping core 21 on the die 7 also increases; conversely, when the compression of the compression spring 28 decreases, the clamping force of the clamping core 21 on the die 7 decreases. This design allows the clamping device to flexibly adjust the clamping force of the die 7 according to the thickness and material of the leather. When cutting thinner or softer leather, the clamping force is reduced to prevent leather deformation; when cutting thicker or harder leather, the clamping force is increased to prevent the die 7 from loosening, ensuring cutting results and improving the adaptability and practicality of the device.

[0057] However, as is well known to those skilled in the art, the working principles and wiring methods of the knife release cylinder 5, the rotary motor 16 and the drive motor 13 are all conventional means or common knowledge, and will not be described in detail here. Those skilled in the art can make any selections according to their needs or convenience.

[0058] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A cutting and clamping device for soft materials, characterized in that, include: The base (1) has a guide rail (2) and a moving rack (3) on its top. The movable base (9) is slidably connected to the guide rail (2) via a strip slider (14) provided at the bottom; The shaft support (4) is fixedly installed on both sides of the movable base (9); The fixed base (27) is fixedly installed inside the movable base (9); The bearing (26) is fixedly installed inside the fixed seat (27); The clamping tool spindle core (22) passes through the bearing (26) and is rotatably connected; Multiple cores (21) are integrally formed at the bottom of the clamping tool spindle core (22); The die (7) is snapped onto the outer wall of the core (21); The unclamping assembly is mounted on the shaft support (4) and is used to control the clamping and loosening of the die (7); A movable component is disposed on the movable base (9). The movable component includes a drive motor (13) fixed to the top of the movable base (9) and a movable gear (15) mounted on the output shaft of the drive motor (13). The movable gear (15) meshes with the movable rack (3) on the top of the base (1). When the drive motor (13) rotates, it drives the movable base (9) to slide along the guide rail (2). The moving base (9) is driven to move horizontally by the meshing of the moving gear (15) and the moving rack (3); A drive assembly, mounted on the movable base (9), is used to drive the main spindle core (22) of the clamping tool to rotate in order to adjust the cutting angle of the die (7).

2. The soft material cutting clamping device according to claim 1, characterized in that: The knife release assembly includes a knife release cylinder (5) fixed to the top of the shaft support (4), a core puller (8) connected to the piston rod of the knife release cylinder (5), a pressing rod (24) passing through the core puller (8), and a pressing tapered block (23) fixed to the bottom of the pressing rod (24). The side wall of the shaft support (4) is provided with an elliptical hole (12), and the core puller (8) is guided by inserting the core puller (8) into the elliptical hole (12) through the fixing rod (6); The bottom of the pressure rod (24) extends into the interior of the clamping tool spindle core (22), releasing the pressure on the clamping core (21) when the pressure tapered block (23) moves upward.

3. The soft material cutting clamping device according to claim 1, characterized in that: The die (7) is provided with a movable slider (10) at the top, and the base (1) is provided with a strip groove (29) at the bottom. The movable slider (10) and the strip groove (29) form an auxiliary sliding pair.

4. The soft material cutting clamping device according to claim 1, characterized in that: The drive assembly includes a motor base (18) fixed to the top of the movable base (9), a rotary motor (16) fixedly mounted on the top of the motor base (18), an active synchronous pulley (17) mounted on the output shaft of the rotary motor (16), a second synchronous pulley (20) fixed to the outer wall of the clamping tool spindle core (22), and a synchronous belt (19) connecting the active synchronous pulley (17) and the second synchronous pulley (20).

5. The soft material cutting clamping device according to claim 1, characterized in that: It also includes a pressure regulating mechanism, which comprises: Spring seat (11) fixed to the top of the fixed base (27); A pressure adjusting nut (25) with a thread passing through the spring seat (11); A pressure spring (28) is located between the bottom of the pressure adjusting nut (25) and the top of the clamping tool spindle core (22); The rotating pressure adjusting nut (25) can change the compression of the lower spring (28), thereby adjusting the clamping force of the clamping core (21) on the die (7).

6. The soft material cutting clamping device according to claim 3, characterized in that: The mating surfaces of the strip slider (14) and the guide rail (2) are provided with a self-lubricating coating, and the gap between the movable slider (10) and the strip groove (29) is controlled within the range of 0.05-0.1mm.

7. The soft material cutting clamping device according to claim 2, characterized in that: When the release cylinder (5) is activated, its upward stroke causes the downward pressing tapered block (23) to completely disengage from the conical contact area of ​​the core (21). At this time, the core (21) contracts radially by 1.5-2mm to form a die disassembly gap.

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