Flat knife slitting device and slitting machine

Abstract

The present invention discloses a flat knife slitting device, comprising a frame, a cutter installation shaft, a slitting knife group and a knife groove roller, wherein the cutter installation shaft is arranged between the frames, and a plurality of the slitting knife groups are arranged on the cutter installation shaft with intervals, and the slitting knife group cooperates with the knife groove roller and is used to slitting materials, and the flat knife slitting device also comprises two pneumatic control components, wherein the pneumatic control components comprise a control cylinder, a first transmission member, a second transmission member and a cantilever, wherein the first transmission member is connected to the output end of the control cylinder, the second transmission member is connected to the first transmission member, one end of the cantilever is connected to the second transmission member, the cantilever can rotate around the second transmission member, the other end of the cantilever is connected to the cutter installation shaft, the cantilever drives the cutter installation shaft to rotate, and the slitting knife group is arranged at an angle and rotates with the cutter installation shaft. The present invention realizes pneumatic control of knife lowering, is easy to operate, is flexible and adjustable, and reduces the defective rate.

Description

Technical Field

[0001] The invention belongs to the technical field of slitting equipment, and in particular relates to a flat knife slitting device and a slitting machine. Background Art

[0002] A slitting machine is a mechanical device that cuts wide paper, mica tape or film into multiple narrow materials. It is commonly used in papermaking machinery, wire and cable mica tape and printing and packaging machinery. It is mainly used for: non-woven fabrics, mica tape, paper, insulating materials and various film materials. It is particularly suitable for the slitting of narrow tapes (non-woven fabrics, paper, insulating materials, mica tape, film, etc.). The slitting machine blade is one of the important parts of the slitting machine equipment. The setting, layout and structure of the blade have a great influence on the slitting operation. The blade of the current slitting machine is usually fixed. For example, a film slitting machine with high-efficiency static removal function disclosed in patent No. CN105197654A comprises a frame (1), a reel (2) and a roll (3). ), guide roller (3), cutter (4), waste edge roller (5), winding pressure roller (6) and winding roller (8), the unwinding roller (2) and winding roller (8) are respectively arranged on the left and right sides of the frame (1), and a plurality of guide rollers (3) and cutters (4) are arranged inside the frame (1). The film to be cut is unwound from the unwinding roller (2) and introduced along the guide rollers, and is cut by the cutter (4) and then wound on the winding roller (8). The winding pressure roller (6) is arranged next to the winding roller (8), and the waste edge is wound on the waste edge roller (5). The static electricity removal ion rod a (7) is arranged next to the winding roller (8). The static electricity is reduced by the static electricity removal ion rod, but the cutter is also fixedly installed, which makes it difficult to adjust in time, and the feedback action is slow, so it is difficult to ensure the quality of the product. Summary of the invention

[0003] The present invention aims to avoid the deficiencies of the prior art and provides a flat knife slitting device and a slitting machine which are easy to operate and provide timely feedback.

[0004] The present invention solves the technical problem by adopting the following technical scheme: a flat knife slitting device comprises a frame, a cutter mounting shaft, a slitting knife group and a knife groove roller, the cutter mounting shaft is arranged between the frames, a plurality of the slitting knife groups are arranged on the cutter mounting shaft with intervals, the slitting knife group cooperates with the knife groove roller and is used to cut materials, the flat knife slitting device also comprises two pneumatic control components, the two pneumatic control components are symmetrically arranged on both sides of the frame, the pneumatic control components comprise a control cylinder, a first transmission member, a second transmission member and a cantilever, the first transmission member is connected to the output end of the control cylinder, the second transmission member is connected to the first transmission member, one end of the cantilever is connected to the second transmission member, the cantilever can rotate around the second transmission member, the other end of the cantilever is connected to the cutter mounting shaft, the cantilever drives the cutter mounting shaft to rotate, the slitting knife group is tilted and rotates with the cutter mounting shaft.

[0005] In one embodiment, the slitting knife assembly includes a slitting knife frame and a slitting knife. The slitting knife frame is detachably arranged on a slitting knife mounting shaft. The slitting knife is arranged at the bottom of the slitting knife frame. The slitting knife cooperates with a knife groove roller.

[0006] In one embodiment, a scale sticker is axially arranged on the cutter mounting shaft, and the cutter holder cooperates with the scale sticker.

[0007] In one embodiment, the first transmission member is a floating joint, and the second transmission member is a fisheye joint.

[0008] In one embodiment, both ends of the cutter installation shaft penetrate into the frame, and a bushing is provided between the cutter installation shaft and the frame.

[0009] In one embodiment, a limiting member is provided on one side of the frame, and a fixed seat and an adjusting cylinder are provided at the other end of the frame. The limiting member penetrates into the frame and cooperates with one end of the cutter mounting shaft. The adjusting cylinder is provided on the fixed seat, and the output end of the adjusting cylinder cooperates with the other end of the cutter mounting shaft.

[0010] In one embodiment, a bearing member is disposed in the fixing seat, and the bearing member cooperates with the cutter mounting shaft.

[0011] The present invention also provides a slitting machine including the above-mentioned flat knife slitting device, the slitting machine also includes an unwinding mechanism, a material receiving platform, a tension mechanism, a flattening roller, an active traction mechanism and a double-axis winding mechanism arranged in sequence, the unwinding mechanism is connected to the frame through a fixed frame, the material receiving platform and the tension mechanism are both arranged on the fixed frame, and the flattening roller, the active traction mechanism and the double-axis winding mechanism are all arranged on the frame.

[0012] In one embodiment, a waste material suction fan is arranged on one side of the bottom of the double-axis winding mechanism, and the waste material suction fan is arranged on a frame.

[0013] The present invention uses a pneumatic control component to control the flat knife slitting device, realizes the pneumatic lowering and lifting of the knife, is easy to operate, reduces the steps of debugging and fixing, and can lift the knife in time when a fault occurs to avoid erroneous slitting of the material and reduce losses. At the same time, with the help of scale stickers, it is convenient to adjust the distance between the cutters, which is more accurate and flexible. With the help of the adjustment cylinder, a small range of lateral movement can be performed. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The drawings described herein are for illustrative purposes only of selected embodiments and do not represent all possible implementations, and should not be considered to limit the scope of the present invention.

[0015] Figure 1 The overall structure of a flat knife slitting device according to an embodiment of the present invention is schematically shown;

[0016] Figure 2 The overall internal structure of a slitting machine according to an embodiment of the present invention is schematically shown. DETAILED DESCRIPTION

[0017] Below, embodiments of the present invention are described in detail with reference to the accompanying drawings. To make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0018] Therefore, the following detailed description of the embodiments of the present invention provided in conjunction with the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. All other embodiments obtained by ordinary technicians in the field based on the embodiments of the present invention without making any creative work are within the scope of protection of the present invention.

[0019] The terms used herein are intended to explain the embodiments and are not intended to limit and / or define the present invention. It should be understood that the terms "front", "rear", "left", "right", "upper", "lower", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the invention product is usually placed when in use, or the positions or positional relationships commonly understood by those skilled in the art, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0020] Below, refer to Figure 1 to Figure 2 , a preferred embodiment of the present invention is described in detail.

[0021] Figure 1 It is a schematic diagram of the cross-sectional structure of the entire flat knife slitting device in a front view.

[0022] Figure 2 This is a schematic diagram of the overall structure of the slitting machine in a side view, wherein the frame on one side is omitted for ease of understanding.

[0023] According to an embodiment of the present invention, a flat knife slitting device comprises a frame 100, a cutter installation shaft 200, a slitting knife group 300 and a knife groove roller 400, wherein the cutter installation shaft 200 is arranged between the frames 100, and a plurality of the slitting knife groups 300 are arranged on the cutter installation shaft 200 with intervals, and the slitting knife groups 300 cooperate with the knife groove roller 400 and are used to cut materials, and the flat knife slitting device also comprises two pneumatic control components, which are symmetrically arranged on both sides of the frame 100, and the pneumatic control components comprise a control cylinder 500, a first transmission member 600, a second transmission member 700 and a cantilever 800, wherein the first transmission member 600 and the control cylinder 500 are connected to each other. The output end of the cantilever 800 is connected, the second transmission member 700 is connected to the first transmission member 600, one end of the cantilever 800 is connected to the second transmission member 700, the cantilever 800 can rotate around the second transmission member 700, the other end of the cantilever 800 is connected to the cutter mounting shaft 200, the cantilever 800 drives the cutter mounting shaft 200 to rotate, the slitting knife group 300 is tilted and rotates with the cutter mounting shaft 200 to form a connecting rod mechanism, by controlling the linear motion of the output end of the cylinder, cooperating with the first transmission member and the second transmission member, driving the rotation of the cantilever, and then driving the rotation of the slitting knife group, the slitting knife group makes a movement close to the knife groove roller and away from the knife groove roller, thereby realizing the start and stop of the slitting operation.

[0024] Specifically, in one embodiment, the slitting knife group 300 includes a slitting knife frame 310 and a slitting knife 320. The slitting knife frame 310 is detachably arranged on the slitting knife mounting shaft 200. The slitting knife 320 is arranged at the bottom of the slitting knife frame 310. The slitting knife 320 cooperates with the knife groove roller 400. The slitting knife frame 310 and the slitting knife 320 both adopt the component structures commonly used in the field. The slitting knife frame is sleeved on the slitting knife mounting shaft and is tightened and fixed by a set screw, which is convenient for adjustment.

[0025] In one embodiment, a scale sticker 210 is axially fitted on the cutter mounting shaft 200, and the cutter frame 310 cooperates with the scale sticker 210. The scale sticker 210 can be directly purchased and glued to the cutter mounting shaft to facilitate accurate adjustment of the distance between the cutters.

[0026] In one embodiment, the first transmission member 600 is a floating joint, through which the coaxiality error is compensated, and the second transmission member 700 is a fisheye joint, through which the rotation process is realized, and both can be purchased on the market.

[0027] In one embodiment, both ends of the cutter installation shaft 200 penetrate into the frame 100, and a bushing 110 is embedded between the cutter installation shaft 200 and the frame 100, so as to improve the connection effect and reduce the damage caused by friction.

[0028] In one embodiment, a limit member 120 is provided on one side of the frame 100, and a fixing seat 130 (which is hollow inside and in the shape of a box and can be fixed to the frame by bolts) and an adjusting cylinder 140 are provided at the other end of the frame 100. The limit member 120 penetrates into the frame 100 and cooperates with one end of the cutter mounting shaft 200. The adjusting cylinder 140 is provided on the fixing seat 130, and the output end of the adjusting cylinder 140 cooperates with the other end of the cutter mounting shaft 200. The limit member 120 can be a limit screw. By rotating the limit member, the length of the limit member inserted into the frame is adjusted, and then the lateral movement range of the cutter mounting shaft is adjusted. The adjusting cylinder 140 drives the overall small-amplitude lateral linear movement of the cutter mounting shaft. At the same time, a bearing member 150 is provided in the fixing seat 130, and the bearing member 150 cooperates with the cutter mounting shaft 200 to reduce the friction caused by the rotational movement and facilitate the rotation process.

[0029] The present invention also provides a slitting machine, comprising a unwinding mechanism 10, a material receiving platform 20, a tension mechanism 30, a flattening roller 40, an active traction mechanism 50, a flat knife slitting device, and a double-axis winding mechanism 60 which are arranged in sequence. The unwinding mechanism 10 is connected to a frame 100 through the material receiving platform 20, the tension mechanism 30 is arranged on the material receiving platform 20, the flattening roller 40, the active traction mechanism 50 and the double-axis winding mechanism 60 are all arranged on the frame 100, and raw materials such as films are released by the unwinding mechanism 10, and enter the flat knife slitting device for slitting after passing through the tension mechanism, the flattening roller and the active traction mechanism, and are wound up by the double-axis winding mechanism. At the same time, a waste material suction fan 80 is arranged on one side of the bottom of the double-axis winding mechanism 60, and the waste material suction fan 80 is arranged on the frame 100, thereby sucking away the waste material and improving the winding quality. The components in the slitting machine can adopt the commonly used structures in the field, and no further limitation is made here.

[0030] It should be noted that in the present invention, any connection method between components not described herein may be a commonly used connection method in the field.

[0031] The scope of the present invention is not limited by the above-described embodiments but by the appended claims and their equivalents.

Claims

1. A flat knife slitting device, comprising a frame, a slitting knife mounting shaft, a slitting knife group and a knife groove roller, wherein the slitting knife mounting shaft is arranged between the frames, a plurality of slitting knife groups are arranged on the slitting knife mounting shaft at intervals, the slitting knife group cooperates with the knife groove roller and is used to slitting materials, characterized in that: The flat knife slitting device also includes two pneumatic control components, which are symmetrically arranged on both sides of the frame, and the pneumatic control components include a control cylinder, a first transmission member, a second transmission member and a cantilever, the first transmission member is connected to the output end of the control cylinder, the second transmission member is connected to the first transmission member, one end of the cantilever is connected to the second transmission member, the cantilever can rotate around the second transmission member, the other end of the cantilever is connected to the cutter mounting shaft, the cantilever drives the cutter mounting shaft to rotate, and the slitting knife group is tilted and rotates with the cutter mounting shaft; A limiting member is provided on one side of the frame, and a fixing seat and an adjusting cylinder are provided at the other end of the frame. The limiting member penetrates into the frame and cooperates with one end of the cutter mounting shaft. The adjusting cylinder is provided on the fixing seat, and the output end of the adjusting cylinder cooperates with the other end of the cutter mounting shaft.

2. A flat knife slitting device according to claim 1, characterized in that: The slitting knife group comprises a slitting knife frame and a slitting knife. The slitting knife frame is detachably arranged on the slitting knife installation shaft. The slitting knife is arranged at the bottom of the slitting knife frame. The slitting knife cooperates with the knife groove roller.

3. A flat knife slitting device according to claim 2, characterized in that: A scale sticker is axially arranged on the cutter installation shaft, and the cutter frame matches the scale sticker.

4. A flat knife slitting device according to claim 3, characterized in that: The first transmission member is a floating joint, and the second transmission member is a fisheye joint.

5. A flat knife slitting device according to claim 4, characterized in that: Both ends of the cutter installation shaft penetrate into the frame, and a bushing is arranged between the cutter installation shaft and the frame.

6. A flat knife slitting device according to claim 5, characterized in that: A bearing component is arranged in the fixing seat, and the bearing component matches with the cutter installation shaft.

7. A slitting machine, characterized in that: The slitting machine comprises a flat knife slitting device as described in any one of claims 1-6.

8. A slitting machine according to claim 7, characterized in that: The slitting machine also includes an unwinding mechanism, a material receiving platform, a tension mechanism, a flattening roller, an active traction mechanism and a double-axis winding mechanism which are arranged in sequence. The unwinding mechanism is connected to the frame through a fixed frame, the material receiving platform and the tension mechanism are both arranged on the fixed frame, and the flattening roller, the active traction mechanism and the double-axis winding mechanism are all arranged on the frame.

9. A slitting machine according to claim 8, characterized in that: A scrap material suction fan is arranged on one side of the bottom of the double-shaft winding mechanism, and the scrap material suction fan is arranged on the frame.

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