CN210940641U - Tool edge inlet and outlet fine adjustment mechanism - Google Patents

Abstract

The knife edge enters and exits the fine adjustment mechanism, the knife edge is fixed on the mounting rack, and the knife edge can move horizontally along with the mounting rack; the mounting frame is provided with a pushing plate, and the wheel body of the cam is propped against the pushing plate to make the cam perform translation in the moving direction of the knife edge when the cam rotates. The utility model discloses a business turn over fine setting of cam structure control edge of a knife, the mounting bracket can order about the edge of a knife as the follower and do small translation adjustment, has reduced the problem that scissors difference, big-small mouth etc. error, the unable assurance of geometric dimensions that the cardboard produced at folding in-process, ensures that the folded paper line is clear, not slope, and the carton that rolls over becomes the case squarely.

Description

Tool edge inlet and outlet fine adjustment mechanism

Technical Field

The utility model belongs to the technical field of the printing machine and specifically relates to a knife edge business turn over fine-tuning.

Background

A printing box-sticking linkage line is mechanical equipment used for sticking folding cartons in carton factories, and generally comprises a paper feeding part, a deviation correcting part, a crease line shaping part, a glue coating part, a folding part and a counting and discharging part. In the folding process of the paperboard, the knife edge of the folding line is pressed, if the position of the paperboard deviates or an error exists, the phenomena of poor scissors and incapability of ensuring the large and small openings can be generated, so that the folding line of the paperboard after being folded is inclined, and the finished box is inclined and the geometric dimension is inaccurate; in the existing printing box-sticking linkage line, the operation of adjusting the position of the knife edge needs to be stopped integrally, so that the production efficiency is seriously reduced. Therefore, a mechanism capable of adjusting the position of the knife edge in the power-on state is required to solve the above problems.

Disclosure of Invention

The utility model aims to solve the existing problems and provide a knife edge access fine adjustment mechanism.

In order to achieve the above object, the utility model discloses a technical scheme include edge of a knife, cam and mounting bracket, wherein: the knife edge is fixed on the mounting rack and can move horizontally along with the mounting rack; the mounting bracket is provided with a pushing plate, and a wheel body of the cam is abutted against the pushing plate when the cam rotates so as to enable the cam to move horizontally in the moving direction of the knife edge.

The two pushing plates are respectively arranged on the front side and the rear side of the cam in the knife edge translation direction; when the wheel body of the cam rotates, the wheel body pushes against the front pushing plate and the rear pushing plate, so that the knife edge can respectively move forwards and backwards.

The distance between the two pushing plates is larger than the diameter of the base circle of the cam and not larger than the sum of the diameter of the base circle of the cam and two times of pushing distance.

Wherein, the upper ends of the two pushing plates are fixed on the lower end surface of the mounting rack.

The cam base circle comprises a cam base circle and a cam base circle, wherein the cam base circle is fixedly connected with the cam base circle; the motor drives the rotation of the transmission shaft, and then drives the cam.

The mounting frame is provided with a groove, and the groove translates along a fixed block arranged in the groove to form a sliding mechanism for translation of the mounting frame.

The knife edge is provided with a sliding block, and the sliding block is placed in the sliding groove to translate to form a sliding mechanism for translating the knife edge.

Compared with the prior art, the utility model controls the fine adjustment of the inlet and outlet of the knife edge through the cam structure, the mounting rack can drive the knife edge to perform the micro translation adjustment as the driven piece, thereby reducing the problems of the error of scissors, large and small openings and the like and the incapability of guaranteeing the geometric dimension generated in the folding process of the paper board, ensuring that the folded paper line is clear and not inclined, and ensuring that the folded paper box is square; the machine does not need to be stopped to adjust the knife edge, thereby improving the production efficiency and the production quality.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a cross-sectional view taken along the line A-A in FIG. 1;

referring to the attached drawings, the motor 1, the transmission shaft 2, the cam 3, the mounting frame 4, the knife edge 5, the pushing plate 6, the fixing block 7 and the sliding block 8 are arranged.

Detailed Description

The present invention will now be further described with reference to the accompanying drawings.

Referring to fig. 1, fig. 1 shows an embodiment of the present invention, which includes an elongated knife edge 5, a planar cam 3, and a mounting bracket 4. Wherein: the lower end of the knife edge 5 is fixed on the side wall of the mounting frame 4, and the knife edge 5 can move along with the mounting frame 4. The lower end surface of the mounting rack 4 is provided with two vertical pushing plates 6; when the cam 3 rotates, the wheel body of the cam 3 is abutted against the pushing plate 6 and pushes the pushing plate to make the knife edge 5 move horizontally. Referring to fig. 2, the right side of the arrow in the drawing is taken as the front side and the left side is taken as the back side in the embodiment. Furthermore, two pushing plates 6 are arranged and respectively arranged on the front side and the rear side of the cam 3 in the translation direction of the knife edge 5, and the plate surface of the pushing plate 6 can be in contact with the cam 3. When the wheel body of the cam 3 rotates, the wheel body pushes against the front pushing plate 6 and the rear pushing plate 6, so that the knife edge 5 can respectively move forwards and backwards.

In the embodiment, the distance between the two pushing plates 6 is larger than the base circle diameter of the cam 3, and the cam cannot rotate when the distance is too small; the distance is also no greater than the sum of the base diameter of the cam 3 and twice the stroke, otherwise the reverse stroke cannot be performed after a single stroke to the maximum stroke.

When the position of the knife edge 5 needs to be adjusted, the motor 1 of the embodiment is started and drives the transmission shaft 2 to rotate, and the transmission shaft 2 drives the cam 3 to rotate due to the fixed connection of the transmission shaft 2 and the center of the base circle of the cam 3. At the beginning, the protruding curved surface part of the cam 3 is positioned between the front pushing plate 6 and the rear pushing plate 6, the cam 3 can be rotated forwards or backwards for a certain angle according to the operation requirement, and then the cam 3 is contacted with the pushing plate 6 on one side. The mounting frame 4 and the pushing plate 6 thereof are equivalent to a moving follower and are pushed by the cam 3 to move in the moving direction along the knife edge 5; if the adjustment is reversed, the transmission shaft 2 is reversed, and the convex part of the cam 3 is contacted with the pushing plate 6 on the other side and reversely pushes the knife edge 5 to perform micro translation. In this embodiment, the knife edge 5 can realize the fine adjustment of the advance and the exit, and the adjustment range is +/-6 mm, namely the maximum pushing distance of the forward and backward rotation of the cam 3 is 6 mm.

Referring to fig. 1, the side of the mounting bracket 4 is further provided with a groove, and the groove translates along the fixing block 7 placed in the groove to form a sliding mechanism for translating the mounting bracket 4. The fixed block 7 is a bent plate arranged on the frame, and the end part of the fixed block extends into the groove and is matched with the groove in a sliding way, namely the moving pair can convert the rotation of the cam 3 into movement.

Further, referring to fig. 1, a convex sliding block 8 is additionally arranged on the knife edge 5, and the sliding block 8 is placed in a sliding groove fixed on the frame to realize translation, and similarly, a sliding mechanism for the translation of the knife edge 5 is formed.

In addition, the embodiment may also adopt more than two sets of the fine adjustment mechanisms composed of the cam 3, the mounting frame 4, the motor 1 and the transmission shaft 2, and the specific number may be set according to the actual length of the knife edge 5; the principle and operation process are the same as those of the above embodiments, and therefore, the detailed description is omitted.

The embodiments of the present invention have been described in conjunction with the accompanying drawings and examples, the structures of which are not intended to limit the present invention, and those skilled in the art can make modifications as required, and all changes and modifications within the scope of the appended claims are within the scope of protection.

Claims (7)

1. The utility model provides a knife edge access fine-tuning, includes the knife edge, its characterized in that: still include cam and mounting bracket, wherein: the knife edge is fixed on the mounting rack and can move horizontally along with the mounting rack;

the mounting bracket is provided with a pushing plate, and a wheel body of the cam is abutted against the pushing plate when the cam rotates so as to enable the cam to move horizontally in the moving direction of the knife edge.

2. The knife-edge access trimming mechanism of claim 1, wherein: the two pushing plates are respectively arranged on the front side and the rear side of the cam in the knife edge translation direction; when the wheel body of the cam rotates, the wheel body pushes against the front pushing plate and the rear pushing plate, so that the knife edge can respectively move forwards and backwards.

3. The knife-edge access trimming mechanism of claim 2, wherein: the distance between the two pushing plates is larger than the diameter of the base circle of the cam and not larger than the sum of the diameter of the base circle of the cam and two times of pushing distance.

4. The knife-edge access trimming mechanism of claim 2 or 3, wherein: the upper ends of the two pushing plates are fixed on the lower end face of the mounting frame.

5. The knife-edge access trimming mechanism of claim 1, 2 or 3, wherein: the transmission shaft is fixedly connected with the circle center of the cam base circle; the motor drives the rotation of the transmission shaft, and then drives the cam.

6. The knife-edge access trimming mechanism of claim 1, wherein: the mounting frame is provided with a groove, and the groove translates along a fixed block arranged in the groove to form a sliding mechanism for translating the mounting frame.

7. The knife-edge access trimming mechanism of claim 1 or 6, wherein: the knife edge is provided with a sliding block, and the sliding block is placed in the sliding groove to translate to form a sliding mechanism for translating the knife edge.

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