A cutting knife sliding block connecting device of a cutting machine

By using an eccentric spindle to drive the swing block and transmission connecting rod in conjunction with the pivot arc groove flaring design and protective sleeve, the problem of difficult connecting rod fitting in the cutting machine is solved, realizing a fast and convenient installation process and improving the stability and service life of the equipment.

CN224508545UActive Publication Date: 2026-07-17TAIZHOU TECHNICIAN COLLEGE (IN PREPARATION) +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
TAIZHOU TECHNICIAN COLLEGE (IN PREPARATION)
Filing Date
2025-08-06
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

The difference in crankshaft eccentricity and the anti-disengagement design of the rotating groove in existing cutting machines make it difficult to synchronously fit the two ends of the connecting rod, resulting in cumbersome operation and inconvenient installation.

Method used

An eccentric spindle drives a swing block, which is connected to a transverse sliding block through a transmission structure. The flared design of the pivot groove and the protective sleeve reduce friction. Combined with limit blocks and adjustment holes, the installation accuracy is improved, enabling rapid installation.

Benefits of technology

It simplifies the installation process, improves installation efficiency and stability, reduces frictional loss and noise, and extends service life and operational stability.

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Abstract

The technical scheme belongs to the mechanical cutting technical field and particularly relates to a cutter sliding block connecting device of a cutting machine, which comprises an eccentric main shaft, a transverse cutting sliding block and a transmission structure, the transverse cutting sliding block is arranged to slide relative to the eccentric main shaft, the eccentric main shaft drives the transverse cutting sliding block to reciprocatingly slide through the transmission structure, the transmission structure comprises a swing block, one end of the swing block is sleeved on the eccentric main shaft, the swing block is hinged to the eccentric main shaft, the other end of the swing block is provided with a pivoting part, a pivoting arc groove for the pivoting part is arranged on the side of the transverse cutting sliding block, and the groove bottom arc surface of the pivoting arc groove is arranged to be flared towards the opening end; a transmission connecting rod is hinged to the swing block and the transverse cutting sliding block at two ends, respectively, when assembled, the transverse cutting sliding block is pushed away, the swing block is hinged to the eccentric main shaft, at this time, the pivoting part of the swing block is aligned with the opening of the pivoting arc groove, the transverse cutting sliding block is retracted, the pivoting part is laterally embedded into the pivoting arc groove through the opening, the assembly progress requirement is reduced, and the operation and assembly are convenient.
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Claims

1. A cutting knife slide block connecting device of a cutting machine, comprising an eccentric main shaft, characterized in that, It also includes a cross-cutting slider (1) and a transmission structure (2). The cross-cutting slider (1) is slidably disposed relative to the eccentric main shaft. The eccentric main shaft drives the cross-cutting slider (1) to reciprocate through the transmission structure (2). The transmission structure (2) includes: A swing block (21) is provided at both ends of the eccentric main shaft and the transverse sliding block (1). One end of the swing block (21) is sleeved on the eccentric main shaft and the swing block (21) is hinged to the eccentric main shaft. The other end of the swing block (21) has a pivot part (3). The side of the transverse sliding block (1) is provided with a pivot arc groove (4) for the pivot part (3) to fit. The bottom arc surface of the pivot arc groove (4) makes the groove width flare towards the opening end. The transmission link (22) is hinged at both ends to the swing block (21) and the transverse sliding block (1).

2. The cutting slide connecting device for a cutting machine according to claim 1, characterized in that: The arc of the bottom surface of the pivoting arc groove (4) is less than or equal to 180°.

3. The knife slider connecting device of a cutting machine according to claim 1, characterized in that: A protective sleeve (5) is installed inside the pivoting arc groove (4), and the outer side wall of the pivoting part (3) abuts against the protective sleeve (5).

4. The knife slider connecting device of a cutting machine according to claim 3, characterized in that: The protective sleeve (5) is made of copper or ceramic.

5. The knife slider connecting device of a cutting machine according to claim 3, wherein: The transverse cutting slider (1) is provided with two limiting blocks (6). The two limiting blocks (6) are connected one-to-one to the symmetrical sides of the opening position of the pivot arc groove (4) of the transverse cutting slider (1). The limiting blocks (6) are interference fit with the groove opening of the pivot arc groove (4) to form a block against the protective sleeve (5).

6. The knife slider connecting device of a cutting machine according to claim 1, wherein: The transmission link (22) has two adjustment holes (7), and the two adjustment holes (7) are set one by one to correspond to the positions of the transverse slider (1) and the swing block (21).

7. The knife slider connecting device of a cutting machine according to claim 1, wherein: The transmission connecting rod (22) has a hinge hole 1 (81) and a hinge hole 2 (82) at both ends. The swing block (21) has a hinge groove 1 (91). The hinge groove 1 (91) is provided corresponding to the hinge hole 1 (81) for the pin (10) to pass through and connect. The transverse sliding block (1) has a hinge groove 2 (92). The hinge groove 2 (92) is provided corresponding to the hinge hole 2 (82) for the pin (10) to pass through and connect.