Cutter pushing device

Abstract

The utility model discloses a cutter pushing device which comprises a cutter pushing unit, a lap joint component and a cutter changing arm for installing a cutter, and one end of the cutter changing arm is used for being in butt joint with a cutter shaft; the cutter pushing unit is arranged on the outer side of the cutter changing arm in a sleeving mode and can move in a reciprocating mode in the axis direction of the cutter changing arm to push a cutter to move. The lap joint component is located on one side of the tool changing arm and used for being in lap joint with the tool shaft so that the tool pushing unit can transfer a tool to the tool shaft. The cutter pushing unit is attached to the cutter changing arm, cutter pushing is convenient and fast, operation is easy, the structure is compact, the cutter pushing efficiency can be greatly improved, the size is reduced, the occupied space is reduced, and abrasion to the cutter is small.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of knife replacement of a slitting machine, in particular to a knife pushing device. BACKGROUND

[0002] The slitting machine is a mechanical device for cutting wide rolls into multiple narrow strips, and is widely used in the processing of paper, plastic film, metal foil and other materials. The knife, as the core component of the slitting machine, undertakes the important task of cutting materials. Through the rotation of the knife, accurate cutting of the material is realized. When the knife is worn or needs to be adjusted in width, the knife on the knife shaft of the slitting machine needs to be disassembled and replaced.

[0003] At present, the most common method is to replace the knife manually, but the replacement speed is slow. The existing knife pushing device, such as the cross arm knife mounting and dismounting device with the announcement number CN214443490U, has a separate knife replacement arm, so the overall volume is large, the space occupied is large, and the operation is complicated, and it is still difficult to meet the demand of fast knife replacement. CONTENT OF THE UTILITY MODEL

[0004] The application provides a knife pushing device to solve the technical problem of large volume of existing knife replacement, and adopts the following technical scheme:

[0005] The knife pushing device comprises a knife replacement arm for mounting a knife, and one end of the knife replacement arm is used for abutting against a knife shaft;

[0006] A knife pushing unit is arranged outside the knife replacement arm, and the knife pushing unit can reciprocate along the axis direction of the knife replacement arm to push the knife to move;

[0007] A lapping component is arranged on one side of the knife replacement arm and is used for lapping the knife shaft, so that the knife pushing unit can transfer the knife to the knife shaft.

[0008] Preferably, the knife pushing unit comprises a driving mechanism, a connecting component and a pushing sleeve arranged outside the knife replacement arm, the connecting component connects the driving mechanism and the pushing sleeve, and the driving mechanism is used for driving the pushing sleeve to move.

[0009] Further preferably, the knife replacement arm is hollow, an opening is arranged at the bottom, the driving mechanism comprises a power component and a reciprocating assembly arranged in the knife replacement arm, and the power component is used for driving the reciprocating assembly.

[0010] Preferably, a sliding component is arranged on the knife replacement arm and is in sliding connection with the knife pushing unit.

[0011] Preferably, a positioning component is further arranged on the knife replacement arm and is located on the side where the lapping component is arranged, and is used for limiting the position of the knife replacement arm.

[0012] Preferably, a plurality of supporting components are arranged on the tool changing arm, and the supporting components are circumferentially distributed on the top of the tool changing arm, and the supporting components are used for supporting the tool, and the outer diameter of the overlapping component is flush with the outer diameter of the supporting component.

[0013] Preferably, a plurality of push blocks are arranged on one side of the tool pushing unit, and the push blocks are circumferentially distributed on the side end of the tool pushing unit, and the push blocks are used for abutting against the tool.

[0014] Further preferably, a gap is arranged between the pushing sleeve and the tool shaft arm.

[0015] The beneficial effects of the present application compared with the prior art are:

[0016] The tool pushing unit of the present application is attached to the tool changing arm, and the tool pushing is convenient and fast, the operation is simple, the structure is compact, the occupied space is small, and the tool pushing efficiency can be greatly improved.

[0017] Secondly, the tool changing arm has an open bottom and a hollow structure, and the driving mechanism is arranged in the tool changing arm, so that the volume can be further reduced and the occupied space can be reduced. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a perspective view of the present application from one angle;

[0019] Figure 2 is another perspective view of the present application from another angle;

[0020] Figure 3 is a top view of the present application;

[0021] Figure 4 is a sectional view of the present application at A-A; Figure 3

[0022] Figure 5 is a sectional view of the present application at B-B. Figure 3

[0023] In the drawings:

[0024] 1, tool changing arm, 10, opening;

[0025] 2, tool pushing unit, 21, pushing sleeve, 22, driving mechanism, 221, power component, 222, reciprocating assembly, 23, connecting component;

[0026] 3, overlapping component; 4, push block; 5, positioning component; 6, sliding component; 7, supporting component. DETAILED DESCRIPTION

[0027] ​​The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described in this application are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0028] See Figures 1 to 5 To further elaborate on this application:

[0029] Combination Figure 1 The tool pushing device includes a tool pushing unit 2, a connecting component 3, and a tool changing arm 1 for mounting the tool, wherein one end of the tool changing arm 1 ( Figure 1 The middle (right end) is used to connect to the tool shaft; the pusher unit 2 is sleeved on the outside of the tool changing arm 1, and the pusher unit 2 can reciprocate along the axial direction of the tool changing arm 1 to push the tool to move; the overlapping part 3 is located on one side of the tool changing arm 1 and is used to overlap the tool shaft so that the pusher unit 2 can transfer the tool to the tool shaft.

[0030] Compared with the prior art, this application places the pusher unit 2 on the outside of the tool changing arm 1 and designs the pusher unit 2 and the tool changing arm 1 as an integral structure. When changing the tool, the pusher unit 2 only needs to move along the axial direction of the tool changing arm 1 to push the tool onto the slitting machine cutter shaft. This not only has a compact structure and occupies little space, but also pushes the tool quickly and efficiently, which can improve and shorten the pushing time.

[0031] Combination Figure 2 In order to reduce the weight of the tool changing arm 1, the tool changing arm 1 is hollow inside, forming a cavity, and has an opening 10 at the bottom, which can reduce the weight of the tool changing arm 1, ensure the strength and rigidity of the tool changing arm 1, and improve the bending resistance of the tool changing arm 1.

[0032] Combination Figure 2 The pusher unit 2 includes a drive mechanism 22 and a connecting component 23, as well as a pusher sleeve 21 sleeved on the outside of the tool changing arm 1. The connecting component 23 connects the drive mechanism 22 and the pusher sleeve through the opening 10. The drive mechanism 22 is used to drive the pusher sleeve 21 to move. The drive mechanism 22 includes a power component 221 and a reciprocating assembly 222 disposed in the tool changing arm 1. The power component 221 is a motor. The power component 221 is used to drive the reciprocating assembly 222. The reciprocating assembly 222 is disposed in the cavity in the tool changing arm 1, making the overall structure more compact, further reducing the overall space occupied, and protecting and dustproofing the reciprocating assembly 222, ensuring operational stability.

[0033] Combination Figure 4In the embodiment, the reciprocating assembly 222 adopts a screw rod mechanism, the pushing sleeve 21 is connected with a nut in the screw rod mechanism through the connecting component 23, the screw rod mechanism is driven by the motor, and then the pushing sleeve is reciprocated along the axis direction of the tool changing arm. In an embodiment not shown, the driving mechanism 22 can also be a cylinder or other reciprocating mechanism.

[0034] In combination Figure 2 In order to avoid rotation of the pushing sleeve 21 and ensure stable movement, a sliding component 6 is arranged on the tool changing arm 1 and slidably connected with the tool pushing unit 2. The sliding component 6 can be a sliding block and a guide rail. The sliding component 6 is arranged at the opening 10 formed at the bottom of the tool changing arm 1.

[0035] In combination Figure 1 In order to ensure that the tool changing arm 1 can be connected with the tool shaft, a positioning component 5 is further arranged on the tool changing arm 1. The positioning component 5 is located on the side where the overlapping component 3 is arranged, and is used to limit the position of the tool changing arm 1. The positioning component 5 can be matched with the tool shaft to accurately connect the tool changing arm 1 with the tool shaft.

[0036] As Figure 4 A gap is arranged between the pushing sleeve 21 and the tool changing arm 1, so as to avoid contact and friction between the pushing sleeve 21 and the outer wall of the tool changing arm 1, reduce the friction resistance, reduce the load of the power component 221, and improve the service life.

[0037] In combination Figure 3 And Figure 5 A plurality of supporting components 7 are arranged on the tool changing arm 1. The supporting components 7 are distributed in the circumferential direction at the top of the tool changing arm 1. The supporting components 7 are smooth supporting rods, which are used to support the tool and also reduce the resistance of the tool pushing unit 2 when pushing the tool.

[0038] In combination Figure 5 In the embodiment, the outer diameter of the overlapping component 3 is flush with the outer diameter of the supporting component 7, so as to avoid contact between the tool and the outer wall of the tool changing arm 1, reduce the contact area between the tool and the tool changing arm 1, and reduce wear.

[0039] In combination Figure 1 A plurality of pushing blocks 4 are arranged on one side of the tool pushing unit 2. The pushing blocks 4 are distributed in the circumferential direction at the side end of the tool pushing unit 2, and are used to abut against the tool and reduce the contact area with the tool. The pushing blocks 4 are arranged at the side of the pushing sleeve 21.

Claims

1. A tool pusher device, characterized in that The tool changing arm comprises a tool changing arm for mounting a tool, one end of the tool changing arm is used for docking a tool shaft; A tool pushing unit is arranged outside the tool changing arm, the tool pushing unit can reciprocate along the axis direction of the tool changing arm to push the tool to move; An overlapping component is arranged on one side of the tool changing arm, which is used for overlapping the tool shaft, and the tool pushing unit is used for transferring the tool to the tool shaft.

2. The knife pushing device according to claim 1, characterized in that: The tool pushing unit comprises a driving mechanism, a connecting component and a pushing sleeve arranged outside the tool changing arm, the connecting component connects the driving mechanism and the pushing sleeve, and the driving mechanism is used for driving the pushing sleeve to move.

3. The knife pushing device according to claim 2, characterized in that: The tool changing arm is hollow inside, and the bottom is provided with an opening, the driving mechanism comprises a power component and a reciprocating assembly arranged inside the tool changing arm, and the power component is used for driving the reciprocating assembly.

4. The knife pusher of claim 1, wherein: A sliding component is arranged on the tool changing arm and is in sliding connection with the tool pushing unit.

5. The knife pusher of claim 1, wherein: A positioning component is further arranged on the tool changing arm, the positioning component is arranged on the side provided with the overlapping component, and is used for limiting the position of the tool changing arm.

6. The knife pusher of claim 1, wherein: A plurality of supporting components are arranged on the tool changing arm, the supporting components are circumferentially distributed on the top of the tool changing arm, the supporting components are used for supporting the tool, and the outer diameter of the overlapping component is flush with the outer diameter of the supporting component.

7. The knife pusher of claim 1, wherein: A plurality of pushing blocks are arranged on one side of the tool pushing unit, the pushing blocks are circumferentially distributed on the side end of the tool pushing unit, and are used for abutting against the tool.

8. The knife pusher of claim 2, wherein: A gap is arranged between the pushing sleeve and the tool shaft arm.

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