A cutting knife mechanism of a tape applicator

Abstract

The present invention discloses a cutting knife mechanism of a tape pasting machine. The technical solution of the present invention is: a cutting knife mechanism of a tape pasting machine, including a fixed block, on which a side plate is provided. On the side plate, a guiding component and a material cutting component connected to the tape are provided. The guiding component includes a guiding block fixing plate, a guiding block and a one-way roller. The material cutting component includes a telescopic cylinder arranged on the side plate, the telescopic cylinder is connected to a cutting knife. On both sides of the cutting knife on the side plate, a one-way roller shaft and a blade roller are respectively arranged. The top of the side plate is arranged higher than the blade roller. The material cutting component further includes a tape sucking block, the tape sucking block includes a fitting surface in contact with the tape, on which suction holes connected to a negative pressure device are provided. The top of the tape sucking block is provided with an arc surface cooperating with the blade roller. The solution provided by the present invention can be in good contact with the bottle body and can cut off the tape.

Description

Technical Field

[0001] The present invention relates to the technical field of packaging equipment, and particularly relates to a cutting knife mechanism of a tape pasting machine. Background Art

[0002] It is rather troublesome and laborious to carry large daily necessities such as carton-packaged products, barreled products, and purified water packaged with heat shrinkable films during use. In the prior art, a solution of adding a plastic pull ring at the bottle mouth is designed for barreled products. This solution has a high cost and the plastic pull ring itself increases pollution. Therefore, designing a degradable carrying belt on these packages has become an effective and environmentally friendly solution. And how to design an automated device that improves the packaging of these products that are not easy to carry to facilitate lifting and carrying is exactly the problem to be solved by the present inventor. And how to attach the tape to the product and be able to cut the tape is the problem to be solved by this solution. Summary of the Invention

[0003] Aiming at the deficiencies of the prior art, the main purpose of the present invention is to provide a cutting knife mechanism that can make good contact with the bottle body and can cut the tape.

[0004] To achieve the above purpose, the present invention provides the following technical solution: A cutting knife mechanism of a tape pasting machine, including a fixed block, a side plate is arranged on the fixed block, a guiding component and a cutting component connected to the tape are arranged on the side plate. The guiding component includes a guiding block fixing plate, a guiding block and a one-way roller. The cutting component includes a telescopic cylinder arranged on the side plate, the telescopic cylinder is connected to a cutting knife. One-way rollers and blade rollers are respectively arranged on both sides of the cutting knife on the side plate. The top of the side plate is higher than the blade roller. The cutting component further includes a tape sucking block. The tape sucking block includes a fitting surface in contact with the tape. Suction holes connected to a negative pressure device are arranged on the fitting surface. An arc surface cooperating with the blade roller is arranged on the top of the tape sucking block.

[0005] Preferably, an elastic component is further arranged between the guiding component and the cutting component. The elastic component includes a snap ring fixing block arranged on the side plate. The snap ring fixing block is connected to a tensioning frame. A roller is arranged on the tensioning frame. The tensioning frame is also connected to a tensioning back plate through a pin shaft. An O-ring shaft sleeve in contact with the roller is arranged on the tensioning back plate. A plurality of O-rings are sleeved on the O-ring shaft sleeve. The tensioning back plate and the snap ring fixing block are connected through a snap ring.

[0006] Preferably, a transition component is further arranged between the elastic component and the guiding component. The transition component includes an elastic rod, a fixing plate connected to the elastic rod, and a guiding block connected to the fixing plate.

[0007] The present invention has the following advantages over the prior art. The strip enters from the guide block of the guiding assembly, then enters the guiding roller and fits into the fitting surface of the tape suction block and enters between the arc surface and the blade roller, and then is led out after passing through another blade roller. During operation, the telescopic cylinder drives the cutting knife to descend to avoid contacting the strip. When it is necessary to cut the strip, the telescopic cylinder drives the cutting knife to cut the strip. Among them, the suction holes on the tape suction block fix the strip by negative pressure when the strip does not need to be pulled out. When the strip is pulled out and attached to the product, the suction holes do not suck air, and the strip can pass over the tape suction block. Taking the product as a bottle body as an example, when the blade roller is used to contact the bottle body, the entire blade structure can drive the strip to move downward along the side surface of the bottle body. When the blade roller is located below the bottle body, the strip will not be attached to the bottle body. At this time, the blade roller does not contact the bottle body. Since the top of the side plate is higher than the blade roller, a gap will be generated between the strip and the bottle body. This part of the material path can be used as a tape lifter. As the bottle body is conveyed, the cutting knife mechanism extends, and the blade roller can drive the strip to adhere upward along the other side of the bottle body. After the adhesion is completed, the telescopic cylinder drives the cutting knife to cut the strip. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] FIG. 1 is a schematic structural view of a cutting knife mechanism of a tape pasting machine according to the present invention.

[0009] In the figure: 1, fixed block; 2, side plate; 3, guide block; 4, guide block fixing plate; 5, one-way roller; 6, telescopic cylinder; 7, cutting knife; 8, one-way roller shaft; 9, blade roller; 10, tape suction block; 11, fitting surface; 12, suction hole; 13, arc surface; 14, snap ring fixing block; 15, tensioning frame; 16, roller shaft; 17, tensioning back plate; 18, O-ring shaft sleeve; 19, O-ring; 20, snap ring; 21, elastic rod;

[0010] 22, fixing plate; 23, guide block. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0011] The present invention will be further described below with reference to the accompanying drawings.

[0012] As shown in Figure 1, a cutting mechanism of a tape applicator includes a fixed block 1. A side plate 2 is provided on the fixed block 1. A guiding component and a material cutting component connected to the tape are provided on the side plate 2. The guiding component includes a guiding block fixing plate 4, a guiding block 3, and a one-way roller 5. The material cutting component includes a telescopic cylinder 6 provided on the side plate 2. The telescopic cylinder 6 is connected to a cutting knife 7. A one-way roller 8 and a blade roller 9 are respectively provided on both sides of the cutting knife 7 on the side plate 2. The top of the side plate 2 is higher than the blade roller 9. The material cutting component further includes a tape suction block 10. The tape suction block 10 includes a fitting surface 11 in contact with the tape. Suction holes 12 connected to a negative pressure device are provided on the fitting surface 11. An arc surface 13 cooperating with the blade roller 9 is provided on the top of the tape suction block 10.

[0013] The working principle of the cutting mechanism of the tape applicator in this solution is as follows: The tape enters from the guiding block of the guiding component, then enters the guiding roller and fits into the fitting surface 11 of the tape suction block 10 and enters between the arc surface 13 and the blade roller 9, and then is led out after passing through another blade roller 9. During operation, the telescopic cylinder 6 drives the cutting knife 7 to descend to avoid contacting the tape. When the tape needs to be cut, the telescopic cylinder 6 drives the cutting knife 7 to cut the tape. Among them, the suction holes 12 on the tape suction block 10 fix the tape by negative pressure when the tape does not need to be pulled out. When the tape is pulled out and attached to the product, the suction holes 12 do not suck air, and the tape can pass over the tape suction block 10. Taking the product as a bottle body as an example, the blade roller 9 is used to drive the entire blade structure to move downward along the side surface of the bottle body when contacting the bottle body. When the blade roller 9 is located below the bottle body, the tape will not adhere to the bottle body. At this time, the blade roller 9 does not contact the bottle body. Since the top of the side plate 2 is higher than the blade roller 9, a gap will be generated between the tape and the bottle body. This part of the tape path can be used as a tape lifting part. As the bottle body is conveyed, the cutting knife 7 mechanism extends, and the blade roller 9 can drive the tape to adhere upward along the other side of the bottle body. After the adhesion is completed, the telescopic cylinder 6 drives the cutting knife 7 to cut the tape.

[0014] Preferably, an elastic component is further arranged between the guiding component and the material cutting component. The elastic component includes a circlip fixing block 14 arranged on the side plate 2. The circlip fixing block 14 is connected to a tensioning frame 15. A roller 16 is arranged on the tensioning frame 15. The tensioning frame 15 is further connected to a tensioning back plate 17 through a pin shaft. An O-ring bushing 18 in contact with the roller 16 is arranged on the tensioning back plate 17. A plurality of O-rings 19 are sleeved on the O-ring bushing 18. The tensioning back plate 17 and the circlip fixing block 14 are connected through a circlip 20. The arrangement of the elastic component is to buffer the tension of the material tape so that the material tape will not get stuck when being pulled, especially when the cutting knife 7 mechanism moves up and down, the material tape can be relatively smooth. The arrangement of the O-rings 19 increases the elastic force and reduces the contact area, thereby reducing the friction with the material tape.

[0015] Preferably, a transition component is further arranged between the elastic component and the guiding component. The transition component includes an elastic rod 21, a fixing plate 22 connected to the elastic rod 21, and a guiding block 23 connected to the fixing plate 22. Such an arrangement is to further guide the material tape through the guiding block 23, and the elastic rod 21 can ensure the tension of the material tape and the overall toughness of the material tape.

[0016] The above are only the preferred embodiments of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions falling within the idea of the present invention belong to the protection scope of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and retouches should also be regarded as the protection scope of the present invention.

Claims

1. A cutting mechanism for a tape applicator, characterized in that: it includes a fixed block, a side plate is arranged on the fixed block, a guiding component and a material cutting component connected to the tape are arranged on the side plate, the guiding component includes a guiding block fixing plate, a guiding block and a one-way roller, the material cutting component includes a telescopic cylinder arranged on the side plate, the telescopic cylinder is connected to a cutting knife, one-way rollers and blade rollers are respectively arranged on both sides of the cutting knife on the side plate, the top of the side plate is arranged higher than the blade roller, the material cutting component further includes a tape sucking block, the tape sucking block includes a fitting surface in contact with the tape, suction holes connected to a negative pressure device are arranged on the fitting surface, and an arc surface matched with the blade roller is arranged on the top of the tape sucking block.

2. The cutting mechanism for a tape applicator according to claim 1, characterized in that: an elastic component is further arranged between the guiding component and the material cutting component, the elastic component includes a snap ring fixing block arranged on the side plate, the snap ring fixing block is connected to a tensioning frame, a roller is arranged on the tensioning frame, the tensioning frame is further connected to a tensioning back plate through a pin shaft, an O-ring shaft sleeve in contact with the roller is arranged on the tensioning back plate, a plurality of O-rings are sleeved on the O-ring shaft sleeve, and the tensioning back plate and the snap ring fixing block are connected through a snap ring.

3. The cutting mechanism for a tape applicator according to claim 2, characterized in that: a transition component is further arranged between the elastic component and the guiding component, the transition component includes an elastic rod, a fixing plate connected to the elastic rod and a guide block connected to the fixing plate.

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