CN218947407U

CN218947407U - Sheet edge positioning mechanism

Info

Publication number: CN218947407U
Application number: CN202222277871.0U
Authority: CN
Inventors: 姜华; 邹长春
Original assignee: Shanghai Eternal Machinery Co Ltd
Current assignee: Shanghai Eternal Machinery Co Ltd
Priority date: 2022-08-29
Filing date: 2022-08-29
Publication date: 2023-05-02
Anticipated expiration: 2032-08-29

Abstract

The utility model relates to a sheet edge positioning mechanism which comprises a positioning stop block, a screw shaft and a supporting seat, wherein the screw shaft is fixed on the supporting seat, the sheet edge positioning mechanism further comprises a positioning stop block fixing plate, the positioning stop block is fixed on one side of the positioning stop block fixing plate, one end of the positioning stop block fixing plate is rotationally connected with the screw shaft, and the other end of the positioning stop block fixing plate is in sliding connection with the screw shaft. Compared with the prior art, the utility model has the advantages of high positioning precision, convenient adjustment and the like.

Description

Sheet edge positioning mechanism

Technical Field

The utility model relates to the field of positioning devices, in particular to a sheet edge positioning mechanism.

Background

In the field of printing and packaging equipment, a plurality of processes such as printing, die cutting, pasting, gold stamping and the like are needed before a finished product is manufactured on some sheet materials such as paper (corrugated paper) boards, PE sheets, hard glue sheets and the like, each process can be performed after being positioned before being executed, otherwise, the conditions such as inaccurate printing, inaccurate cutting, inaccurate pasting and the like can occur, and defective products are generated.

The usual location for a sheet is typically the edge of the sheet. The conventional edge positioning mechanism is shown in fig. 1, and comprises a positioning stop block 1, a screw shaft 2, an input shaft 3 and a transmission gear set 4, wherein the screw shaft 2 is driven by the transmission gear set 4 through rotating the input shaft 3, the positions of the positioning stop block 1 are respectively adjusted, and a sheet 5 is abutted against the positioning stop block 1, so that the positioning requirement of the sheet is met.

The prior art has the disadvantage that the positioning stoppers are not in a straight line because the positions of the positioning stoppers are respectively adjusted as shown in fig. 2, and when the edges of the sheet are close to the positioning stoppers, the sheet can only contact at two points A, B, and the sheet is easy to damage when the tip contacts due to the fact that the sheet material is generally softer, so that the positioning accuracy is affected.

Disclosure of Invention

The utility model aims to overcome the defect that the positioning stop block in the prior art damages a sheet-shaped object due to inclination and influences positioning accuracy.

The aim of the utility model can be achieved by the following technical scheme:

the utility model provides a sheet thing edge positioning mechanism, includes location dog, screw rod axle and supporting seat, the screw rod axle is fixed on the supporting seat, and sheet thing edge positioning mechanism still includes location dog fixed plate, the one side at location dog fixed plate is fixed to the location dog, the one end and the screw rod axle swivelling joint of location dog fixed plate, the other end and screw rod axle sliding connection.

Preferably, the distance between the positioning stoppers is set according to the size of the positioning object.

Preferably, the number of the positioning stoppers is a plurality.

Preferably, the positioning block fixing plate is rotatably connected with the screw shaft through a first bearing.

Preferably, the positioning block fixing plate is in sliding connection with the screw shaft through a second bearing.

Preferably, the positioning stop block fixing plate is provided with a groove, and the second bearing is slidably connected in the groove.

Preferably, an external thread is arranged at one end of the screw shaft, which is opposite to the connection of the positioning stop block fixing plate.

Preferably, the threaded end of the screw shaft is connected with a gear, and the screw shaft is concentrically connected with the gear.

Preferably, the central hole of the gear is provided with an internal thread matched with the external thread of the screw shaft.

Preferably, the supporting seat is provided with a groove corresponding to the shape of the positioning stop block fixing plate, and the depth of the groove is equal to the thickness of the positioning stop block fixing plate.

Compared with the prior art, the utility model has the following advantages:

(1) According to the utility model, the positioning stop block is fixed on the positioning stop block fixing plate, so that the positioning stop block is prevented from contacting with the tip of a positioning object under the condition that the positioning stop block is not on the same straight line, and can still be in line contact with the positioning object when the positioning stop block is inclined, the positioning object is prevented from being damaged, and the positioning precision is improved.

(2) According to the utility model, one end of the positioning stop block fixing plate is rotationally connected with one end of the positioning stop block fixing plate in a sliding manner, when the positioning stop block fixing plate is inclined, the positioning requirement of a positioning object can be met through fine adjustment of the positioning stop block fixing plate, and the positioning stop block fixing plate has higher precision adjusting capability.

Drawings

FIG. 1 is a schematic diagram of a related art structure of the present utility model;

FIG. 2 is a schematic diagram of the related art error locating operation of the present utility model;

FIG. 3 is a schematic view of a positioning structure of a sheet according to an embodiment of the present utility model;

FIG. 4 is a schematic diagram of a positioning condition of a positioning baffle according to an embodiment of the present utility model;

FIG. 5 is an enlarged view of a portion of a slide connection end of a positioning block fixing plate according to an embodiment of the present utility model;

in the figure, 1, a positioning stop block, 2, a screw shaft, 3, an input shaft, 4, a transmission gear set, 5, a sheet, 6, a first bearing, 7, a positioning stop block fixing plate, 8, a second bearing, 9, a groove, 10 and a supporting seat.

Detailed Description

The utility model will now be described in detail with reference to the drawings and specific examples. The present embodiment is implemented on the premise of the technical scheme of the present utility model, and a detailed implementation manner and a specific operation process are given, but the protection scope of the present utility model is not limited to the following examples.

Example 1

As shown in fig. 3, a sheet edge positioning mechanism comprises a positioning stop block 1, a screw shaft 2 and a supporting seat 10, wherein the screw shaft 2 is fixed on the supporting seat 10, the sheet edge positioning mechanism further comprises a positioning stop block fixing plate 7, the positioning stop block 1 is fixed on one side of the positioning stop block fixing plate 7, one end of the positioning stop block fixing plate 7 is rotatably connected with the screw shaft 2, and the other end of the positioning stop block fixing plate is slidably connected with the screw shaft 2.

Working principle: when the position of the positioning stop block 1 needs to be adjusted, two ends of the positioning stop block fixing plate 7 are adjusted through the screw shafts 2, and when the input rotation angles of the two screw shafts 2 are the same, the positioning stop block fixing plate 7 and the positioning stop block 1 move in parallel along the axial direction of the screw shafts 2 together, so that the positioning stop block 1 is aligned with the edge of a positioning object, and the positioning requirement of the positioning object is met;

when the input rotation angles of the two screw shafts 2 are different, the positioning stop block fixing plate 7 and the positioning stop block 1 swing and move together by taking the rotation connection position of the positioning stop block fixing plate 7 and the screw shafts 2 as the center, and at the moment, the sliding connection end of the positioning stop block fixing plate 7 and the screw shafts 2 can be adjusted, so that the positioning stop block 1 is aligned with the edge of a positioning object, and the positioning requirement of the positioning object is met.

This scheme is fixed locating dog 1 on locating dog fixed plate 7, and locating dog fixed plate 7's one end and screw rod axle 2 rotation are fixed simultaneously, and one end and screw rod axle sliding connection when locating dog 1 not in a straight line also is locating dog fixed plate 7's edge and locating article edge exist the contained angle, and locating article still line contact with locating dog 1 can not appear the phenomenon of sharp point contact, and the protection locating article that can be fine also has higher positioning accuracy.

The distance between the positioning stops 1 is set according to the size of the positioning object.

The number of the positioning stoppers 1 is plural.

As a preferred embodiment, as shown in fig. 4 to 5, the positioning block fixing plate 7 is rotatably connected to the screw shaft 2 through a first bearing 6 such that the positioning block fixing plate 7 can rotate around the first bearing as a center.

The positioning block fixing plate 7 is in sliding connection with the screw shaft 2 through a second bearing 8.

The positioning stop block fixing plate 7 is provided with a groove 9, the second bearing 8 is slidably connected in the groove 9, the second bearing 8 is placed in the groove 9, and the second bearing 8 can roll in the groove 9. The shape of the groove 9 may be circular or square, and the area of the groove 9 is larger than the end surface area of the second bearing 8, so that the second bearing 8 can slide in the groove.

Working principle: when the positioning block 1 is not aligned with the edge of the sheet 5, the fine-tuning positioning block fixing plate 7 rotates around the first bearing 6, and the second bearing 8 slides in the groove 9, so that the positioning block 1 is aligned with the edge of the sheet 5, and the positioning requirement of the sheet 5 is met.

In this embodiment, when there is a slight error between the positioning block 1 and the edge of the sheet 5, the instability of adjusting the error between the individual positioning block 1 and the edge of the sheet 5 by driving the screw shaft 2 through the input shaft 3 is avoided, and the precision is improved by the fine rotation adjustment of the positioning block fixing plate.

The screw shaft 2 is provided with external threads at the end opposite to the connection of the positioning stop block fixing plate 7. The threaded end of the screw shaft 2 is connected with a gear, and the screw shaft 2 is concentrically connected with the gear. The central hole of the gear is provided with an internal thread matched with the external thread of the screw shaft 2.

The support base 10 is provided with a groove corresponding to the shape of the positioning block fixing plate 7, and the depth of the groove is equal to the thickness of the positioning block fixing plate 7.

The working steps of the positioning of the sheet object provided in this embodiment are as follows:

1) The sheet 5 is positioned, the screw shaft 2 is driven by rotating the input shaft 3, and the positioning stop block fixing plate 7 moves along the axial direction of the screw shaft 2 under the action of the screw shaft 2, so that the edge of the sheet 5 abuts against the positioning stop block 1, and the positioning of the sheet 5 is completed.

2) If there is still a slight error in positioning the sheet 5 after adjustment by the input shaft 3, the positioning stopper fixing plate 7 is adjusted by the first bearing 6 and the second bearing 8 to rotate about the first bearing 6, so that the positioning stopper 1 abuts against the edge of the sheet 5, and positioning of the sheet is completed.

The foregoing describes in detail preferred embodiments of the present utility model. It should be understood that numerous modifications and variations can be made in accordance with the concepts of the utility model by one of ordinary skill in the art without undue burden. Therefore, all technical solutions which can be obtained by logic analysis, reasoning or limited experiments based on the prior art by the person skilled in the art according to the inventive concept shall be within the scope of protection defined by the claims.

Claims

1. The utility model provides a sheet thing edge positioning mechanism, includes location dog (1), screw rod axle (2) and supporting seat (10), screw rod axle (2) are fixed on supporting seat (10), its characterized in that, sheet thing edge positioning mechanism still includes location dog fixed plate (7), location dog (1) are fixed in one side of location dog fixed plate (7), the one end and screw rod axle (2) swivelling joint of location dog fixed plate (7), the other end and screw rod axle (2) sliding connection.

2. A sheet edge positioning mechanism according to claim 1, characterized in that the distance between the positioning stops (1) is set according to the size of the positioned article.

3. A sheet edge positioning mechanism according to claim 2, wherein the number of positioning stops (1) is plural.

4. A flap edge positioning mechanism according to claim 1, characterized in that the positioning block fixing plate (7) is rotatably connected to the screw shaft (2) by means of a first bearing (6).

5. A flap edge positioning mechanism according to claim 1, characterized in that the positioning block fixing plate (7) is slidingly connected with the screw shaft (2) via a second bearing (8).

6. A sheet edge positioning mechanism according to claim 5, wherein the positioning block fixing plate (7) is provided with a groove (9), and the second bearing (8) is slidably connected in the groove (9).

7. A sheet edge positioning mechanism according to claim 1, wherein the screw shaft (2) is provided with external threads at the end opposite to the connection of the positioning stopper fixing plate (7).

8. A sheet edge positioning mechanism according to claim 7, wherein the screw shaft (2) is connected to a gear at its threaded end, the screw shaft (2) being concentrically connected to the gear.

9. A flap edge positioning mechanism according to claim 8, characterized in that the central hole of the gear is provided with an internal thread cooperating with the external thread of the screw shaft (2).

10. A sheet edge positioning mechanism according to claim 1, characterized in that the support (10) is provided with a recess corresponding to the shape of the positioning stopper fixing plate (7), the depth of the recess being equal to the thickness of the positioning stopper fixing plate (7).