A winding roll clamp

Abstract

The utility model relates to carbonless paper production technical field, especially a kind of winding roller clamp, including the connecting seat for connecting power device, the working end of connecting seat is provided with base, the front end surface of base is distributed with locking block, auxiliary block and movable block along rotation center circle, the end of movable block is hinged with the end of auxiliary block, the other end of movable block is connected with the end of locking block by locking mechanism, the middle position of locking block, auxiliary block and movable block is all provided with arc slot, multiple arc slots are used to clamp the end of winding roller, the inner wall surface of multiple arc slots is all provided with antiskid layer for increasing friction, improve the convenience of installation and disassembly, strengthen the stability of connection, ensure the continuity and winding quality of winding process.

Description

Technical Field

[0001] This utility model relates to the field of carbonless paper production technology, and in particular to a winding roller clamp. Background Technology

[0002] Currently, among various office supplies, receipts, invoices, and accounting statements are major consumables. Existing receipts and invoices are often made by combining multiple layers of carbonless paper. Carbonless paper, as a special type of coated paper, typically consists of an upper CB layer (containing a color developer coating), a middle CFB layer (double-sided coating), and a lower CF layer (containing a color developer coating). This multi-layered structure places extremely stringent requirements on tension control during the carbonless paper winding process.

[0003] In the production of carbonless paper, a take-up roller is used to collect the coated carbonless paper. The existing method involves fixing both ends of the take-up roller with clamps (also called grippers or clamps), allowing the take-up roller to rotate with the clamps. However, most existing clamps use bolts to fix the take-up roller, which not only involves numerous steps during installation and disassembly but also results in misalignment of the bolt holes. This causes instability in the connection between the two ends of the take-up roller. As the amount of carbonless paper wound onto the take-up roller increases and its weight increases, slippage occurs between the clamps and the take-up roller, causing discontinuity in the winding process, affecting production efficiency, and reducing winding quality. Therefore, this technical solution is proposed for improvement. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the existing technology, such as the cumbersome operation and unstable connection between the clamp and the take-up roller during the winding process of carbonless paper, and to provide a take-up roller clamp.

[0005] This utility model is achieved through the following technical solution: a winding roller clamp, including a connecting seat for connecting a power device; The working end of the connecting seat is provided with a base, and the front end face of the base is provided with a locking block, an auxiliary block and a movable block distributed along the circumference of the rotation center. The end of the movable block is hinged to the end of the auxiliary block, and the other end of the movable block is connected to the end of the locking block through a locking mechanism; The locking block, auxiliary block and movable block are all provided with arc-shaped grooves in the middle position, and multiple arc-shaped grooves are used to clamp the end of the take-up roller; The inner wall surfaces of the multiple arc-shaped grooves are provided with an anti-slip layer to increase friction.

[0006] Furthermore, the anti-slip layer is a rubber layer, the back of the anti-slip layer is bonded to the inner wall of the arc groove, and the front of the anti-slip layer is provided with multiple anti-slip protrusions, which are arranged along the depth direction of the arc groove.

[0007] Furthermore, the locking block and the auxiliary block are detachably mounted on the base. The end of the locking block connected to the movable block is provided with a first step, and the end of the movable block connected to the locking block is provided with a second step. The first step and the second step are interlocked with each other.

[0008] Furthermore, the locking mechanism includes a mounting hole provided on the first step, a locking pin provided inside the mounting hole, a limiting groove provided on the outer side of the mounting hole, a positioning post provided on the side wall of the locking pin, a plug groove for connecting the lever provided in the middle position of the positioning post, the positioning post moving along the direction of the limiting groove, and a receiving hole for accommodating the locking pin provided on the second step.

[0009] Furthermore, a spring is provided inside the mounting hole near one end of the base, and the other end of the spring abuts against the end of the locking pin.

[0010] Furthermore, the end of the locking pin that is inserted into the receiving hole is tapered.

[0011] Furthermore, the limiting groove is arranged in a Z-shape along the moving direction of the locking groove, and the side of the second step is provided with an opening groove for accommodating the lever.

[0012] The beneficial effects of this utility model are as follows: 1. By using the interlocking first and second steps at the ends of the movable block and the locking block, combined with the Z-shaped limiting groove and the locking pin mechanism with the built-in spring, the movable block can be quickly locked and unlocked. This not only makes the operation simple, but also provides strong anti-shear capability through the interlocking of the steps. The spring and locking pin ensure that the block will not accidentally come off in a vibration environment. Thus, while facilitating operation, the rigidity and stability of the clamping connection are greatly enhanced.

[0013] 2. On the inner wall of the arc-shaped groove of the locking block, auxiliary block and movable block, a rubber anti-slip layer with back bonding and front anti-slip ridges is provided, which directly acts on the end of the take-up roller. Through the high friction characteristics of rubber and the "meshing" effect of the ridges, the friction between the clamping surface and the roller end is significantly increased, effectively preventing slippage caused by increased torque during the winding process, ensuring the continuity and reliability of power transmission, and thus improving the winding quality.

[0014] 3. The locking block and auxiliary block are detachably connected to the base via hex bolts, allowing the locking block, auxiliary block, and movable block to be quickly replaced as a module. When dealing with winding rollers of different diameters, only one set of clamping block modules with corresponding arc grooves needs to be replaced, without replacing the entire clamping base. This greatly expands the applicability of the equipment, simplifies the maintenance and replacement process after parts are damaged, and reduces the cost of use.

[0015] 4. The end of the locking pin that extends into the receiving hole adopts a tapered design. When the movable block is closed and locked, even if there is a slight misalignment between the receiving hole and the locking pin, the tapered head can guide and correct it, forcing the movable block to fine-tune to the correct position, ensuring that the locking pin can be smoothly inserted. This reduces the requirements for operational precision, achieves a fast and smooth blind locking effect, and improves work efficiency and clamping success rate. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall design of this utility model; Figure 2 This is a front view structural diagram of the present utility model; Figure 3 This is a side view of the structure of this utility model; Figure 4 This is a schematic diagram showing the position and structure of the locking pin of this utility model; Figure 5 This is a schematic diagram of the structure of the movable block of this utility model after it is opened; Figure 6 This is a schematic diagram of the movable block of this utility model from another angle after it has been opened; The components are: 1. Connecting seat; 2. Base; 3. Locking block; 301. Limiting groove; 302. Locking pin; 303. Positioning post; 304. Lever; 305. Spring; 306. First step; 4. Auxiliary block; 5. Movable block; 501. Opening groove; 502. Receiving hole; 503. Second step; 6. Anti-slip layer; 601. Raised ridge. Detailed Implementation

[0017] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[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 scope of protection of the present utility model. Example

[0019] like Figure 1-6 As shown: This utility model proposes a take-up roller clamp, which mainly includes a connecting seat 1 for connecting a power device. The connecting seat 1 is the power transmission component of the entire clamp. Its shape can be adapted to the actual power device being connected. It is generally designed as a common connecting flange shape and is fixedly connected to the output shaft of the power device by bolts to ensure stable power transmission.

[0020] The working end of the connecting seat 1 is equipped with a base 2, which serves as the support and mounting foundation for the entire clamp. The base 2 is made of high-strength metal materials, such as stainless steel, to ensure sufficient strength and rigidity to withstand various forces generated during the winding process. A locking block 3, an auxiliary block 4, and a movable block 5 are distributed along the circumference of the rotation center on the front face of the base 2. These components cooperate to clamp the end of the winding roller in the middle position, thus achieving the clamping and fixing of the winding roller end.

[0021] Locking block 3, auxiliary block 4, and movable block 5 are arranged in a cylindrical shape. Each of these blocks has an arc-shaped groove at its center, with the centers of the multiple arc-shaped grooves coinciding. The radius of these grooves is designed according to the diameter of the take-up roller end to ensure a tight fit. The multiple arc-shaped grooves work together to form a complete clamping space for holding the end of the take-up roller.

[0022] Locking block 3 and auxiliary block 4 are detachably connected to base 2 via hex socket head cap screws, facilitating the replacement and maintenance of damaged parts. When the diameter of the take-up roller changes, locking block 3, auxiliary block 4, and movable block 5 can be replaced, allowing for adjustments based on production conditions and expanding the applicability.

[0023] The end of the movable block 5 is hinged to the end of the auxiliary block 4 via a hinge shaft (e.g., Figure 5 As shown in the diagram, the movable block 5 can rotate around the hinge axis at a certain angle, thereby realizing the opening and closing action and facilitating the installation and removal of the take-up roller. The other end of the movable block 5 is connected to the end of the locking block 3 through a locking mechanism. By locking and unlocking the locking mechanism, the relative position between the movable block 5 and the locking block 3 is controlled, thereby realizing the clamping and loosening of the end of the take-up roller.

[0024] To increase the friction between the curved grooves and the end of the take-up roller and prevent slippage during winding, anti-slip layers 6 are provided on the inner walls of multiple curved grooves. The anti-slip layer 6 is made of rubber, and its back is bonded to the inner wall of the curved groove with strong adhesive to ensure a firm connection. Multiple anti-slip protrusions 601 are provided on the front of the anti-slip layer 6, arranged along the depth direction of the curved groove, further increasing friction and improving clamping stability.

[0025] The locking block 3 has a first step 306 at one end connected to the movable block 5, and a second step 503 at the other end connected to the locking block 3. The first step 306 and the second step 503 interlock, increasing the stability and positioning accuracy of the connection. The locking mechanism includes a mounting hole laterally disposed inside the first step 306, into which a locking pin 302 is inserted. A limiting groove 301 is provided on the outer side of the mounting hole, and the limiting groove 301 is Z-shaped along the moving direction of the locking pin 302. This design can limit the movement trajectory of the positioning pin 303, ensuring that the locking pin 302 can accurately insert and withdraw from the receiving hole 502. A positioning pin 303 is fixed on the side wall of the locking pin 302. A insertion groove for connecting the lever 304 is provided in the middle of the positioning pin 303. The positioning pin 303 moves along the direction of the limiting groove 301. A receiving hole 502 for accommodating the locking pin 302 is provided on the second step 503. When it is necessary to lock the movable block 5 and the locking block 3, insert the lever 304 into the insertion slot of the positioning pin 303, push the lever 304 to move the positioning pin 303 along the limiting groove 301, and at the same time drive the locking pin 302 to move towards the second step 503 until the locking pin 302 is inserted into the receiving hole 502 on the second step 503, thereby locking the movable block 5 and the locking block 3. When it is necessary to unlock, push the lever 304 in the opposite direction to make the positioning pin 303 drive the locking pin 302 out of the receiving hole 502, and the movable block 5 can then rotate around the hinge axis to separate from the locking block 3. The lever 304 and the positioning pin 303 are detachable. When locking or unlocking, the positioning pin 303 abuts against the inner wall of the limiting groove 301, which plays a limiting role and ensures stable operation.

[0026] A spring 305 is installed near one end of the mounting hole, close to the base 2. The other end of the spring 305 abuts against the end of the locking pin 302. When the locking pin 302 is pushed out of the receiving hole 502, the positioning pin 303 moves to the lower part of the limiting groove 301, the spring 305 is compressed, and the movable block 5 is unlocked from the locking block 3. Under the action of the positioning pin 303, the spring 305 can remain compressed. When locking is required, the positioning pin 303 is rotated to the middle position of the limiting groove 301. Under the action of the spring 305, the locking pin 302 moves to the right, and the other end of the locking pin 302 is inserted into the receiving hole 502. Then, the positioning pin 303 is rotated upward so that it moves to the upper part of the limiting groove 301. Under the action of the spring 305, one end of the locking pin 302 is always inserted into the receiving hole 502, ensuring the stability of the locking state and preventing accidental disengagement during winding.

[0027] The end of the locking pin 302 that is inserted into the receiving hole 502 is set to be tapered. The tapered design makes it easier to align the locking pin 302 when it is inserted into the receiving hole 502. When the movable block 5 clamps the winding roller, if there is a misalignment between the receiving hole 502 and the locking pin 302, the tapered head of the locking pin 302 can be better guided into the receiving hole 502, so as to better cooperate with the receiving hole 502 and improve the stability of locking.

[0028] The second step 503 has an opening slot 501 on its side for accommodating the lever 304, which facilitates the operation of the lever 304 and prevents the lever 304 from interfering with other components during movement.

[0029] The usage process and working principle are as follows: In the carbonless paper production process, when a winding operation is required, first connect the connecting seat 1 to the power unit to ensure normal power transmission. Then, place the winding roller in the appropriate position, open the movable block 5, and make the clamping space formed by the locking block 3, auxiliary block 4, and the arc groove on the movable block 5 large enough to allow the end of the winding roller to be inserted. After the end of the winding roller is inserted, close the movable block 5, so that the first step 306 and the second step 503 engage with each other. Next, operate the locking mechanism through the lever 304 to insert the locking pin 302 into the receiving hole 502, thereby locking and fixing the movable block 5 and the locking block 3. At this time, multiple arc grooves tightly clamp the end of the winding roller, and the anti-slip layer 6 and anti-slip protrusions 601 increase the friction to prevent slippage. Start the power unit, and the winding roller begins to rotate to perform the winding of the carbonless paper. Once winding is complete, the locking mechanism can be unlocked by operating lever 304, opening movable block 5, and the winding roller can be removed. This improves the convenience of installation and disassembly, enhances the stability of the connection, and ensures the continuity of the winding process and the winding quality.

[0030] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A take-up roller clamp, characterized in that, Includes a connector for connecting a power unit; The working end of the connecting seat is provided with a base, and the front end face of the base is provided with a locking block, an auxiliary block and a movable block distributed along the circumference of the rotation center. The end of the movable block is hinged to the end of the auxiliary block, and the other end of the movable block is connected to the end of the locking block through a locking mechanism; The locking block, auxiliary block and movable block are all provided with arc-shaped grooves in the middle position, and multiple arc-shaped grooves are used to clamp the end of the take-up roller; The inner wall surfaces of the multiple arc-shaped grooves are provided with an anti-slip layer to increase friction.

2. The take-up roller clamp according to claim 1, characterized in that, The anti-slip layer is a rubber layer. The back of the anti-slip layer is bonded to the inner wall of the arc groove. The front of the anti-slip layer is provided with multiple anti-slip protrusions, which are arranged along the depth direction of the arc groove.

3. The take-up roller clamp according to claim 1, characterized in that, The locking block and auxiliary block are detachably mounted on the base. The end of the locking block connected to the movable block is provided with a first step, and the end of the movable block connected to the locking block is provided with a second step. The first step and the second step are interlocked.

4. The take-up roller clamp according to claim 3, characterized in that, The locking mechanism includes a mounting hole on the first step, a locking pin inside the mounting hole, a limiting groove on the outer side of the mounting hole, a positioning post on the side wall of the locking pin, a insertion groove for connecting a lever at the middle position of the positioning post, the positioning post moving along the direction of the limiting groove, and a receiving hole for accommodating the locking pin on the second step.

5. The take-up roller clamp according to claim 4, characterized in that, A spring is provided inside the mounting hole near one end of the base, and the other end of the spring abuts against the end of the locking pin.

6. The take-up roller clamp according to claim 4, characterized in that, The end of the locking pin that is inserted into the receiving hole is tapered.

7. The take-up roller clamp according to claim 4, characterized in that, The limiting groove is arranged in a Z-shape along the moving direction of the locking groove, and the side of the second step is provided with an opening groove for accommodating the lever.

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