Roll changing positioning device of corrugating machine

Abstract

The invention relates to a positioning device, in particular to a roller changing positioning device of a corrugating machine. Comprising a positioning unit and a limiting unit, the positioning unit comprises a base, a first positioning block and a second positioning block, and the first positioning block and the second positioning block are arranged on the top face of the base; the limiting unit comprises a limiting plate, a first limiting block and a second limiting block, wherein the first limiting block and the second limiting block are arranged on the bottom face of the limiting plate. The first limiting block is embedded with the first positioning block along a first direction, and the second limiting block is embedded with the second positioning block along a second direction; wherein the first direction is not parallel to the second direction. The driving unit comprises a jacking oil cylinder, and the jacking oil cylinder pushes the base to move in the direction perpendicular to the first direction and the second direction, so that the positioning block gets close to the limiting block.

Description

Technical Field

[0001] The invention relates to a positioning device, in particular to a roller changing positioning device for a corrugating machine. Background Art

[0002] Corrugated paper is pressed into shape by a corrugator. When producing corrugated paper of different specifications, the corrugated rollers in the corrugator need to be replaced. When replacing the corrugated rollers, the positioning accuracy will affect the quality of the produced corrugated paper. Since the installation requires positioning accuracy, the installation speed is slow, which will affect the production efficiency of the corrugated paper.

[0003] An existing corrugator roller replacement positioning device includes a base, a first positioning plate, a second positioning plate and a third positioning plate, wherein the corrugated roller to be replaced is fixed on the base, the first positioning plate is arranged on the side of the base, the second positioning plate is arranged on the back of the base, and the third positioning plate is arranged on the bottom of the base. During installation, the three positioning plates are fitted with the three positioning planes of the corrugator for positioning. Although this positioning method accurately positions the corrugated roller in three directions, due to factors of manual operation during the actual installation process, it is difficult for the positioning plates to fit on the positioning planes with high precision. Summary of the invention

[0004] Based on this, the purpose of the present invention is to provide a corrugating machine roller changing positioning device, which can automatically center the corrugating roller when changing the roller, so as to reduce the positioning error of replacing the corrugating roller and improve the efficiency of roller changing.

[0005] A roller changing positioning device for a corrugating machine comprises a positioning unit and a limiting unit, wherein the positioning unit comprises a base, and a first positioning block and a second positioning block arranged on the top surface of the base; the limiting unit comprises a limiting plate, and a first limiting block and a second limiting block arranged on the bottom surface of the limiting plate; the first limiting block is engaged with the first positioning block along a first direction, and the second limiting block is engaged with the second positioning block along a second direction; wherein the first direction and the second direction are not parallel.

[0006] By embedding the first positioning block into the first limiting block, the base is positioned in the first direction; by embedding the second positioning block into the second limiting block, the base is positioned in the second direction; at the same time, since the positioning block contacts the limiting block in a direction perpendicular to the first direction and the second direction, the base is also positioned in a direction perpendicular to the first direction and the second direction; at this time, the base is positioned in three axes.

[0007] Furthermore, the first positioning block is provided with a first positioning protrusion along the first direction, and the first limiting block is provided with a first positioning groove along the first direction; or, the first positioning block is provided with a first positioning groove along the first direction, and the first limiting block is provided with a first positioning protrusion along the first direction; the first positioning protrusion can be embedded in the first positioning groove, thus completing the precise positioning of the base in the first direction and the preliminary positioning in the direction perpendicular to the first direction and the second direction.

[0008] Furthermore, the second positioning block is provided with a second positioning protrusion along the second direction, and the second limiting block is provided with a second positioning groove along the second direction; or, the second positioning block is provided with a second positioning groove along the second direction, and the second limiting block is provided with a second positioning protrusion along the second direction; the second positioning protrusion can be embedded in the second positioning groove, so as to achieve the precise positioning of the base in the first direction and the precise positioning in the direction perpendicular to the first direction and the second direction.

[0009] Furthermore, the cross-sectional shapes of the first positioning protrusion, the second positioning protrusion, the first positioning groove and the second positioning groove are trapezoidal. The trapezoidal inclined surface design provides a guiding effect when the positioning block moves toward the limit block, so that when the positioning block is not completely aligned with the limit block, the positioning block can slide along the trapezoidal inclined surface after contacting the limit block to complete automatic alignment, thereby achieving a precise positioning effect.

[0010] Preferably, the contact surfaces of the first positioning protrusion, the second positioning protrusion, the first positioning groove and the second positioning groove are arc-shaped surfaces. The arc-shaped surfaces provide a guide for the positioning block when it moves toward the limit block, so that when the positioning block is not completely aligned with the limit block, the positioning block can slide along the arc-shaped surfaces after contacting the limit block to complete automatic alignment, thereby achieving a precise positioning effect.

[0011] Furthermore, the roller changing positioning device for a corrugator further comprises a driving unit, which comprises a lifting oil cylinder, and the lifting oil cylinder pushes the base to move in a direction perpendicular to the first direction and the second direction, so that the first positioning block and the second positioning block are close to the first limit block and the second limit block. By pushing the lifting oil cylinder, the base is pushed up from a trolley for transporting the base and the positioning block is brought close to the limit block.

[0012] Furthermore, the driving unit further comprises two square pin oil cylinders, the positioning unit further comprises two top blocks, the top blocks are fixed on the front end surface perpendicular to the top surface of the base, the two square pin oil cylinders are respectively arranged on the outside of the two top blocks, and the square pins pushed out by the square pin oil cylinders respectively push a top block to move the base in the second direction, thereby adjusting the position of the base in the second direction.

[0013] Furthermore, the contact surfaces of the square pin pushed out by the square pin oil cylinder and the top block are both inclined surfaces, so that the square pin oil cylinder can push the base to move in the second direction and can also move the base in a direction perpendicular to the first direction and the second direction. Thus, through the push of the square pin oil cylinder, the positioning block moves in the first direction for alignment, and at the same time, the positioning block moves toward the limit block in a direction perpendicular to the first direction and the second direction for positioning.

[0014] Furthermore, the positioning unit is provided with a mounting hole, and the corrugated roller that needs to be replaced can be installed or removed from the mounting hole.

[0015] For better understanding and implementation, the present invention is described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the roller changing and positioning device of the corrugating machine;

[0017] Figure 2 It is a schematic diagram of the positioning block and the limit block structure;

[0018] Figure 3 It is a schematic diagram of the top block and square pin cylinder structure.

[0019] Figure markings: 11-base; 12-first positioning block; 121-first positioning protrusion; 13-second positioning block; 131-second positioning protrusion; 14-top block; 15-mounting hole; 21-limiting plate; 22-first limiting block; 221-first positioning groove; 23-second limiting block; 231-second positioning groove; 32-lifting cylinder; 34-square pin cylinder; 40-corrugated roller. DETAILED DESCRIPTION

[0020] The existing roller changing positioning device for corrugating machines will cause certain positioning errors due to the influence of human factors when the corrugating machine is changing rollers. If high-precision positioning is pursued, higher requirements are placed on the proficiency of the workers, and high-precision positioning will take more time to change rollers. This makes it difficult for the existing roller changing positioning device for corrugating machines to achieve a high level of positioning accuracy and positioning speed at the same time.

[0021] To solve this problem, the present invention proposes a novel roller changing positioning device for a corrugating machine, which can quickly complete the precise three-axis positioning of the device by using the matching relationship between two positioning blocks and limit blocks with protrusions or grooves in different directions.

[0022] The scheme of the roller changing and positioning device for a corrugating machine designed by the present invention is described in detail below in conjunction with the accompanying drawings.

[0023] See also Figure 1The positioning device of the present invention includes a positioning unit, a limiting unit and a driving unit. A corrugated roller 40 is fixed on the positioning unit. The driving unit pushes the positioning unit to move toward the limiting unit, so that the positioning unit and the limiting unit form a matching relationship to complete the rapid and accurate positioning of the corrugated roller 40.

[0024] The positioning unit includes a base 11, a first positioning block 12, and a second positioning block 13. The first positioning block 12 and the second positioning block 13 are arranged on the top surface of the base 11, and the first positioning block 12 is provided with a first positioning protrusion 121, and the second positioning block 13 is provided with a second positioning protrusion 131. The base 11 of the positioning unit is provided with a mounting hole 15, which is used to fix the corrugated roller to be installed in this embodiment. When the positioning unit and the limiting unit are positioned and fixed, the corrugated roller can work normally on the corrugator.

[0025] The limiting unit includes a limiting plate 21, a first limiting block 22 and a second limiting block 23. The first limiting block 22 and the second limiting block 23 are arranged on the bottom surface of the limiting plate 21, and the first limiting block 22 is provided with a first positioning groove 221, and the second limiting block 23 is provided with a second positioning groove 231.

[0026] In the examples, see Figure 2 The cross-sectional shapes of the first positioning protrusion 121, the second positioning protrusion 131, the first positioning groove 221 and the second positioning groove 231 are trapezoidal. When the positioning block moves toward the limiting block and contacts the positioning block, the trapezoidal inclined surface design of the positioning protrusion on the positioning block and the positioning groove on the limiting block provides a guide for the alignment of the positioning block, so that when the positioning block is not completely aligned with the limiting block, the positioning block can slide along the trapezoidal inclined surface to complete automatic alignment, thereby achieving a precise positioning effect. After the first positioning protrusion 121 on the first positioning block 12 cooperates with the first positioning groove 221 on the first limiting block 22, the base 11 of the positioning unit is accurately positioned in the first direction; similarly, after the second positioning protrusion 131 on the second positioning block 13 cooperates with the second positioning groove 231 on the second limiting block 23, the base 11 of the positioning unit is accurately positioned in the second direction. At the same time, due to the close cooperation between the positioning block and the limiting block, the base 11 of the positioning unit is tightly attached to the limiting plate 21 of the limiting unit in a direction perpendicular to the first direction and the second direction, and the positioning unit is also accurately positioned in a direction perpendicular to the first direction and the second direction.

[0027] In another embodiment, the contact surface of the first positioning protrusion 121, the second positioning protrusion 131, the first positioning groove 221 and the second positioning groove 231 is in the shape of an arc-shaped curved surface. When the positioning block moves toward the limiting block and comes into contact, the arc-shaped curved surface design of the positioning protrusion on the positioning block and the positioning groove on the limiting block provides a guide for the alignment of the positioning block, so that when the positioning block is not completely aligned with the limiting block, the positioning block can slide along the arc-shaped curved surface to complete automatic alignment, thereby achieving a precise positioning effect. After the first positioning protrusion 121 on the first positioning block 12 cooperates with the first positioning groove 221 on the first limiting block 22, the base 11 of the positioning unit is accurately positioned in the first direction; similarly, after the second positioning protrusion 131 on the second positioning block 13 cooperates with the second positioning groove 231 on the second limiting block 23, the base 11 of the positioning unit is accurately positioned in the second direction. At the same time, due to the close cooperation between the positioning block and the limiting block, the base 11 of the positioning unit is tightly attached to the limiting plate 21 of the limiting unit in a direction perpendicular to the first direction and the second direction, and the positioning unit is also accurately positioned in a direction perpendicular to the first direction and the second direction.

[0028] The driving unit includes two lifting cylinders 32 and two square pin cylinders 34. The two lifting cylinders 32 are arranged opposite to the bottom surface of the base 11 of the positioning unit. The piston pushed out by the lifting cylinder 32 acts on the bottom surface of the base 11 and pushes the base 11 to move upward in a direction perpendicular to the first direction and the second direction, so that the base 11 rises from the trolley for transportation and the positioning block on the base 11 approaches the limit block. The positioning unit also includes two top blocks 14, which are respectively arranged on the front end surface perpendicular to the top surface of the base 11 along the second direction. The two square pin cylinders 34 are arranged on the outside of the two top blocks 14 of the base 11 along the second direction. The square pin pushed out by the square pin cylinder 34 can contact the top block 14 and push the base 11 to move, and the contact surface between the square pin pushed out by the square pin cylinder 34 and the top block 14 is an inclined surface, and the contact surface between the top block 14 and the square pin cylinder 34 is also a corresponding inclined surface. The square pin cylinder 34 can move in a direction perpendicular to the first direction and the second direction while pushing the top block 14 to move in the second direction, so that the positioning block of the base 11 is close to the limiting block of the limiting plate 21. At the same time, since the positioning protrusion on the positioning block and the positioning groove on the limiting block are trapezoidal or arc-shaped surfaces, when the positioning block moves in a direction perpendicular to the first direction and the second direction, the positioning protrusion on it can slide along the positioning groove of the limiting block to complete automatic alignment.

[0029] In this embodiment, the first direction is the longitudinal direction, the second direction is the transverse direction, and the transverse direction is perpendicular to the longitudinal direction.

[0030] In actual use, the base 11 of the positioning unit is first transported to the bottom of the limit plate 21 of the limit unit by a trolley and simply aligned, and then the base 11 is vertically lifted up by the jacking cylinder 32 of the driving unit to separate the base 11 of the positioning unit from the trolley used for transportation. Then, the square pin pushed out by the square pin cylinder 34 acts on the top block 14 to roughly align the base 11 with the limit plate 21 in the second direction, and at the same time, the second positioning block 12 and the first positioning block 13 of the base 11 are pushed in the vertical direction to contact the second limit block 22 and the first limit block 23 of the limit plate 21. Then, the square pin cylinder 34 continues to push the base 11 to move vertically upward, and the trapezoidal second positioning protrusion 121 on the second positioning block 12 slides toward the trapezoidal second positioning groove 221 on the second limiting block 22, completing the second centering positioning of the base 11; at the same time, the trapezoidal first positioning protrusion 131 on the first positioning block 13 slides toward the trapezoidal first positioning groove 231 on the first limiting block 23, completing the centering positioning of the base 11 in the first direction; and at this time, since the positioning block and the limiting block are in close contact in the direction perpendicular to the first direction and the second direction, the base is also accurately positioned in the vertical direction.

[0031] Compared with the prior art, the roller changing positioning device for a corrugating machine of the present invention can push the positioning unit to be quickly and accurately positioned on the limiting unit through a driving unit, and then the corrugating roller can be quickly and accurately installed on the corrugating machine, thereby solving the problems of low positioning accuracy and long roller changing time when changing rollers of the corrugating machine.

[0032] The terms used in the embodiments of the present application are only for the purpose of describing specific embodiments, and are not intended to limit the embodiments of the present application. The singular forms of "a", "said" and "the" used in the embodiments of the present application and the claims are also intended to include plural forms, unless the context clearly indicates other meanings. It should also be understood that, unless otherwise specified, "multiple" refers to two or more; the terms "first", "second", "third", etc. are only used to distinguish, rather than to describe a specific order or sequence, and cannot be understood as indicating or implying relative importance. The term "and / or" used herein refers to and includes any or all possible combinations of one or more associated listed items. When the above description relates to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. In the description of the present application, for those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0033] The above-mentioned embodiment only expresses a specific implementation of the present invention, and its description is relatively specific and detailed, but it cannot be understood as limiting the scope of the invention patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A roller changing and positioning device for a corrugating machine, characterized in that: It includes a positioning unit and a limiting unit, the positioning unit includes a base, and a first positioning block and a second positioning block arranged on the top surface of the base; the limiting unit includes a limiting plate, and a first limiting block and a second limiting block arranged on the bottom surface of the limiting plate; the first limiting block is engaged with the first positioning block along a first direction, and the second limiting block is engaged with the second positioning block along a second direction; wherein the first direction and the second direction are not parallel.

2. The roller changing and positioning device for a corrugating machine according to claim 1, characterized in that: The first positioning block is provided with a first positioning protrusion along the first direction, and the first limiting block is provided with a first positioning groove along the first direction; or, the first positioning block is provided with a first positioning groove along the first direction, and the first limiting block is provided with a first positioning protrusion along the first direction; the first positioning protrusion can be embedded in the first positioning groove.

3. The roller changing and positioning device for a corrugating machine according to claim 2, characterized in that: The second positioning block is provided with a second positioning protrusion along the second direction, and the second limiting block is provided with a second positioning groove along the second direction; or, the second positioning block is provided with a second positioning groove along the second direction, and the second limiting block is provided with a second positioning protrusion along the second direction; the second positioning protrusion can be embedded in the second positioning groove.

4. The roller changing and positioning device for a corrugating machine according to claim 3, characterized in that: The cross-sectional shapes of the first positioning protrusion, the second positioning protrusion, the first positioning groove and the second positioning groove are trapezoidal.

5. The roller changing and positioning device for a corrugating machine according to claim 3, characterized in that: The contact surfaces of the first positioning protrusion, the second positioning protrusion, the first positioning groove and the second positioning groove are arc-shaped curved surfaces.

6. The roller changing and positioning device for a corrugating machine according to claim 4 or 5, characterized in that: It also includes a driving unit, which includes a lifting cylinder. The lifting cylinder pushes the base to move in a direction perpendicular to the first direction and the second direction, so that the first positioning block and the second positioning block are close to the first limiting block and the second limiting block.

7. The roller changing and positioning device for a corrugating machine according to claim 6, characterized in that: The driving unit also includes two square pin cylinders, and the positioning unit also includes two top blocks, which are fixed on the front end surface of the base that is perpendicular to the top surface. The two square pin cylinders are respectively arranged on the outsides of the two top blocks, and the square pins pushed out by the square pin cylinders push a top block respectively to move the base along the second direction.

8. The roller changing and positioning device for a corrugating machine according to claim 7, characterized in that: The contact surfaces of the square pin pushed out by the square pin oil cylinder and the top block are both inclined surfaces, so that the square pin oil cylinder can push the base to move in the second direction and also move the base in a direction perpendicular to the first direction and the second direction.

9. The roller changing and positioning device for a corrugating machine according to claim 8, characterized in that: The positioning unit is also provided with a mounting hole, and the corrugated roller that needs to be replaced can be mounted or removed from the mounting hole.

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