CN217648449U

CN217648449U - PET sheet cutting device

Info

Publication number: CN217648449U
Application number: CN202221925532.2U
Authority: CN
Inventors: 潘启来; 黄年华; 程秋芳; 程杰; 陈先美
Original assignee: Wuhan Rongke Packaging Material Co ltd
Current assignee: Wuhan Rongke Packaging Material Co ltd
Priority date: 2022-07-25
Filing date: 2022-07-25
Publication date: 2022-10-25
Anticipated expiration: 2032-07-25

Abstract

The utility model provides a PET sheet cutting device, which comprises two support rods, an upper cutting knife, a lower cutting knife and a driving device, wherein the two support rods are arranged in parallel at a certain interval; the upper cutting knife is fixedly arranged at the top between the two supporting rods; the lower cutting knife is movably arranged in the middle between the two supporting rods; the driving device is used for driving the lower cutting knife to move upwards or downwards. The utility model provides a PET sheet cutting device cuts off the sword through drive arrangement drive down and can cut off the PET sheet fast with very fast speed rebound, and the incision is more neat.

Description

PET sheet cutting device

Technical Field

The utility model relates to a PET sheet cutting equipment technical field specifically relates to a PET sheet cutting device.

Background

In the storage and transportation of coil of strip material, the terminal surface of coil of strip material often can suffer to damage, has very serious damage to coil of strip's integrality like this to also can produce bad influence to coil of strip's performance, consequently people have proposed the end backplate that is used for protecting coil of strip material terminal surface, during the packing, will hold the both ends at the coil of strip with the end backplate. For an end shield manufacturer, the end shield manufacturer needs to use a PET sheet production line to produce a square PET sheet, and then use a cutting machine to cut the square PET sheet into a circular end shield.

A PET sheet production line generally includes the following steps in the production of square PET sheets: 1. conveying the raw materials into a PET sheet extruder, and extruding a PET sheet in a soft heating state by the PET sheet extruder; 2. cooling and shaping the extruded PET sheet by a calender; 3. and cutting the PET sheet after cooling and setting to obtain a square PET sheet.

At present, the cutting work of PET sheet often adopts the mode of manual cutting, and the automation level of whole cutting flow is low, and artifical intensity of labour is big, and is inefficient, and the dynamics of cutting can not fine control, causes the uneven phenomenon of incision easily.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a PET sheet cutting device, include:

the two support rods are arranged in parallel at a certain interval;

the upper cutting knife is fixedly arranged at the top between the two support rods;

the lower cutting knife is movably arranged in the middle between the two support rods;

and the driving device is used for driving the lower cutting knife to move upwards or downwards.

Further, the upper cutting knife comprises an upper cutting knife body and an upper cutting part arranged on the upper cutting knife body, the lower cutting knife comprises a lower cutting knife body and a lower cutting part arranged on the lower cutting knife body, and the lower cutting part and the upper cutting part are arranged in parallel and opposite to each other.

Furthermore, the upper cutting knife bodies on two sides of the upper cutting part are provided with first guide plates, the front faces of the first guide plates are provided with first guide faces, the lower cutting knife bodies on two sides of the lower cutting part are provided with second guide plates corresponding to the first guide plates, and the back faces of the second guide plates are provided with second guide faces.

Further, the cutting device comprises a mounting seat, the mounting seat is arranged at the bottom between the two support rods, the driving device comprises an air cylinder, the air cylinder is arranged on the mounting seat, and the lower cutting knife is connected with a piston rod of the air cylinder.

Further, the cutting device also comprises guide rails which are oppositely arranged on the two support rods, and two ends of the lower cutting knife can slide along the corresponding guide rails.

The utility model provides a PET sheet cutting device cuts off the sword through drive arrangement drive down and can cut off the PET sheet fast with very fast speed rebound, and the incision is more neat. After PET sheet extruder extruded the PET sheet of soft state that generates heat, through calender cooling design, the PET sheet after the cooling design is carried forward through conveyor, the utility model discloses a PET sheet cutting device installs on conveyor, goes up the top that the cutter is located the PET sheet, and the lower cutter is located the below of PET sheet, and when needs cutting operation, the piston rod stretches out, and the cutter rebound under the drive for guide plate two removes along guide plate one, and then makes the portion of cutting off upwards to cut off the portion motion and take place to cut off in order to cut off the PET sheet down.

Drawings

Fig. 1 is a schematic structural diagram of a PET sheet cutting device provided by the present invention installed on a conveying device;

fig. 2 is a schematic structural diagram of a PET sheet cutting device provided by the present invention;

fig. 3 is a schematic structural view illustrating the second guide plate moving along the first guide plate when the piston rod of the present invention is extended;

wherein, 1, a frame; 2. a conveying roller; 3. a support bar; 31. a guide rail; 32. a mounting seat; 4. an upper cutter; 41. an upper cutter body; 42. an upper cutting part; 43. a first guide plate; 44. a first guide surface; 5. a lower cutter; 51. a lower cutter body; 52. a lower cutting part; 53. a second guide plate; 6. a cylinder; 7. a PET sheet.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are exemplary only for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, are not to be construed as limiting the present invention.

In the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected" and "disposed" are to be construed broadly, and may for example be fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1 to 3, the utility model provides a PET sheet cutting machine, including conveyor, PET sheet cutting device, conveyor is used for carrying the PET sheet 7 after the cooling design, PET sheet cutting device installs conveyor is last, and conveyor carries the PET sheet forward, and the PET sheet passes through PET sheet cutting device.

The conveying device comprises a rack 1 and conveying rollers 2, wherein the conveying rollers 2 are rotatably arranged on the rack 1, and when the conveying rollers 2 rotate, the PET sheets 7 can be conveyed forwards; the PET sheet cutting device comprises two support rods 3, an upper cutting knife 4, a lower cutting knife 5 and a driving device, wherein the support rods 3 are arranged on two sides of the rack 1, and it can be understood that one support rod is arranged on one side of the rack, and the other support rod is arranged on the other side of the rack; the upper cutting knife 4 is fixedly arranged at the top between the two support rods 3, the lower cutting knife 5 is movably arranged in the middle between the two support rods 3, and the driving device is used for driving the lower cutting knife 5 to move upwards or downwards; during the forward conveyance of the PET sheet 7, the PET sheet 7 can pass between the upper cutter 4 and the lower cutter 5.

The upper cutting knife 4 comprises an upper cutting knife body 41 and an upper cutting part 42 arranged on the upper cutting knife body 41, guide plates I43 are arranged on the upper cutting knife body 41 on two sides of the upper cutting part 42, a guide surface I44 is arranged on the front surface of each guide plate I43, and two ends of the upper cutting knife body 41 are fixed on the corresponding support rods 3; the lower cutting knife 5 comprises a lower cutting knife body 51 and a lower cutting part 52 arranged on the lower cutting knife body 51, the lower cutting part 52 and the upper cutting part 42 are arranged in parallel and oppositely, two guide plates 53 corresponding to the first guide plates 43 are arranged on the lower cutting knife body 51 on two sides of the lower cutting part 52, and the back surfaces of the second guide plates 53 are provided with second guide surfaces which are not shown in the figure. When the PET sheet is conveyed forwards, the upper cutting knife is located above the PET sheet, the lower cutting knife is located below the PET sheet, when cutting operation is needed, the driving device drives the lower cutting knife to move upwards, the guide plate II moves along the guide plate I, namely the guide surface II is attached to the guide surface I and moves relative to the guide surface I, the lower cutting portion moves towards the upper cutting portion to cut the PET sheet, after the cutting operation is completed, the piston rod retracts, and the lower cutting knife resets. Specifically, the cutting device further comprises guide rails 31, the guide rails 31 are oppositely arranged on the two support rods 3, two ends of the lower cutting knife body 51 can slide along the corresponding guide rails 31, and the lower cutting knife can move upwards or downwards more smoothly due to the arrangement of the guide rails.

Still include mount pad 32, mount pad 32 sets up two bottom between the bracing piece 3, drive arrangement includes cylinder 6, cylinder 6 sets up on the mount pad 32, down the cutting knife body 51 with the piston rod of cylinder 6 links to each other. The air cylinder can drive the lower cutting knife to move upwards or downwards relatively quickly.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A PET sheet cutting device, characterized by comprising:

the two supporting rods (3) are arranged, and the two supporting rods (3) are arranged in parallel at a certain interval;

the upper cutting knife (4) is fixedly arranged at the top between the two supporting rods (3);

the lower cutting knife (5) is movably arranged in the middle between the two supporting rods (3);

a driving device for driving the lower cutting knife (5) to move upwards or downwards.

2. The PET sheet cutting device according to claim 1, wherein the upper cutter (4) includes an upper cutter body (41), and an upper cutting portion (42) provided on the upper cutter body (41), and the lower cutter (5) includes a lower cutter body (51), and a lower cutting portion (52) provided on the lower cutter body (51), and the lower cutting portion (52) is provided in parallel to and opposed to the upper cutting portion (42).

3. The PET sheet cutting device according to claim 2, wherein the upper cutter body (41) on both sides of the upper cutting portion (42) is provided with a first guide plate (43), a front surface of the first guide plate (43) is provided with a first guide surface (44), the lower cutter body (51) on both sides of the lower cutting portion (52) is provided with a second guide plate (53) corresponding to the first guide plate (43), and a rear surface of the second guide plate (53) is provided with a second guide surface.

4. The PET sheet cutting device according to claim 1, further comprising a mounting seat (32), wherein the mounting seat (32) is disposed at a bottom portion between the two support rods (3), the driving device comprises a cylinder (6), the cylinder (6) is disposed on the mounting seat (32), and the lower cutting knife (5) is connected to a piston rod of the cylinder (6).

5. The PET sheet cutting device according to claim 1, further comprising guide rails (31), the guide rails (31) being oppositely disposed on two of the support bars (3), both ends of the lower cutting blade (5) being slidable along the corresponding guide rails (31).