Polyester fiber film cutting device

Abstract

The utility model relates to the technical field of film cutting, in particular to a polyester fiber film cutting device which comprises an installation frame, a plurality of rotating rollers are rotationally connected to the inner side of the installation frame, and a fixing plate is fixedly connected to the middle of the top end of the installation frame. According to the cutting mechanism, the cutter is contracted in the storage groove, it is guaranteed that the first round roller and the second round roller conduct normal conveying operation on the film, when the split film is cut off according to the length requirement, under the action of the electric push rod, the connecting rod and the vertical rod, the U-shaped plate can drive the cutter to instantly move outwards to cut off the film, and the cutting efficiency is improved. Under the action that the first round roller and the second round roller continuously rotate to convey the film, the film can be cut off by the cutter when the first round roller and the second round roller are in a relatively static state, so that the smoothness of the film during cutting off and conveying is ensured, and the film is prevented from deforming on one side of the cutter; and therefore, the cutting effect on the film is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of film cutting, and particularly relates to a polyester fiber film cutting device. Background Art

[0002] Polyester fiber film refers to a film made of various polyester materials. Common polyester materials include PET, PBT, etc. Therefore, PET film is a kind of polyester fiber film, which has excellent mechanical properties and chemical stability and is widely used in many industrial and commercial applications. During the production and processing of PET film, it is usually slit to meet different usage requirements.

[0003] After retrieval, the Chinese patent "a PET film cutting and slitting device" with the authorization announcement number "CN 221318653U" uses a lifting electric roller to lower and press down on the PET film to tighten the PET film, and winds up the PET film from the right end of the PET film to convey the PET film to the right. With the cooperation of the lifting electric roller and the supporting electric roller, the PET film can be slit by a cutter one and a cutter two. After slitting, an operator presses the connecting rod to drive the guide rod and the cutting knife to descend, and the PET film is cut off through the cooperation of the cutting knife and the knife seat. After releasing the connecting rod, the connecting rod, the guide rod and the cutting knife rise and reset through the spring, and thus the slitting and cutting work of the PET film can be quickly completed.

[0004] Although the cutting knife in the above application can cut off the slit PET film, during the cutting process, the PET film continues to be conveyed. When the cutting knife moves downward, it will block the conveyance of the PET film, causing the PET film to deform on one side of the cutting knife, thereby affecting the cutting effect of the PET film.

[0005] Therefore, a polyester fiber film cutting device is proposed to solve the above problems. Content of the Utility Model

[0006] The purpose of the utility model is to provide a polyester fiber film cutting device to solve the above problems, and improve the problem that during the cutting process, the PET film continues to be conveyed. When the cutting knife moves downward, it will block the conveyance of the PET film, causing the PET film to deform on one side of the cutting knife, thereby affecting the cutting effect of the PET film.

[0007] The present utility model realizes the above object through the following technical solutions. A polyester fiber film cutting device includes: a mounting frame, inside which a plurality of rollers are rotatably connected; in the middle of the top end of the mounting frame, a fixed plate is fixedly connected; at the bottom end of the fixed plate, two lifting electric rollers are installed; at the bottom end of the mounting frame, a slitting knife is installed; on one side of the mounting frame, a cutting mechanism is provided; wherein, the cutting mechanism includes a fixed frame fixedly connected to one side of the mounting frame, inside the inner wall of the fixed frame, a first circular roller and a second circular roller are rotatably connected, one ends of the first circular roller and the second circular roller both penetrate out of the fixed frame and are fixedly connected with gears, on one side of the fixed frame, a motor is fixedly connected, and the other end of one of the gears is fixedly connected with the output shaft of the motor; on the surface of the first circular roller, a receiving groove is formed, inside the inner wall of the receiving groove, a U-shaped plate is slidably connected, and inside the U-shaped plate, a cutting knife is installed.

[0008] Preferably, the cutting mechanism further includes an electric push rod embedded in the inner wall of the rotating shaft of the first circular roller, one end of the electric push rod penetrates into the interior of the first circular roller and is hinged with a connecting rod, on one side of the top end of the U-shaped plate, a vertical rod is fixedly connected, and the other end of the vertical rod penetrates into the interior of the first circular roller and is hinged with the other end of the connecting rod. Under the action of the electric push rod, the connecting rod and the vertical rod, it is beneficial to enable the U-shaped plate to drive the cutting knife to instantaneously move outwards to cut the film.

[0009] Preferably, on the surface of the second circular roller, a groove is formed, and the shape of the groove matches the shape of the cutting knife. It ensures the normal cutting operation of the cutting knife on the film.

[0010] Preferably, on the inner wall of the fixed frame, two limiting plates are fixedly connected, and an included angle is formed between one side of the limiting plate and the vertical plane. It is beneficial to limit the film after the cutting knife cuts the film, ensuring the normal transmission of the film when the first circular roller and the second circular roller continue to rotate, and preventing the film from separating from between the first circular roller and the second circular roller.

[0011] Preferably, on the opposite ends of the two limiting plates, roller wheels are rotatably connected in an equally spaced distribution, and the gap between the surfaces of the two groups of roller wheels is the same as the gap between the surfaces of the first circular roller and the second circular roller. It reduces the friction between the film and the limiting plate when the limiting plate limits the film.

[0012] Preferably, on the other side of the fixed frame, a supporting rod is fixedly connected, and the overall shape of the supporting rod is U-shaped. It is beneficial to support the film after cutting in the winding direction, preventing the film from scattering instantaneously after cutting, and ensuring the stability of the film during winding after cutting.

[0013] Preferably, in the middle of the surface of the supporting rod, a rotating ring is rotatably connected. It reduces the friction between the film and the supporting rod.

[0014] Preferably, the other side of the top end of the U-shaped plate is fixedly connected with a limiting rod, and the top end of the limiting rod penetrates through the inner side of the first round roller. This ensures the stability of the up and down movement of the U-shaped plate.

[0015] Preferably, one side of the top end of the mounting frame is fixedly connected with two mounting plates, and two round rods are rotatably connected between the opposite sides of the two mounting plates. This is beneficial for limiting the film on the roller, ensuring that the film always fits on the surface of the roller during the transmission process.

[0016] Preferably, the horizontal height of the highest end of the rotating ring is the same as the horizontal height of the highest end of the second round roller. This ensures the supporting effect on the cut film.

[0017] The beneficial effects of the present utility model are:

[0018] 1. In the above cutting mechanism, the cutter is retracted in the storage groove, which is beneficial for ensuring the normal conveying operation of the film by the first round roller and the second round roller. When cutting the strip-shaped film according to the length requirement, under the action of the electric push rod, the connecting rod and the vertical rod, it is beneficial for the U-shaped plate to drive the cutter to instantaneously move outwards to cut the film, and under the continuous rotation of the first round roller and the second round roller to convey the film, it is beneficial for the cutter to cut the film when the first round roller and the second round roller are relatively stationary with respect to the film, ensuring the smoothness of the film during cutting and conveying, avoiding deformation of the film on one side of the cutter, and thus ensuring the cutting effect on the film;

[0019] 2. The two limiting plates and the corresponding rollers are beneficial for limiting the film after the cutter cuts the film, ensuring the normal conveying of the film when the first round roller and the second round roller continue to rotate, and avoiding the film from separating between the first round roller and the second round roller. Description of the Drawings

[0020] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0021] Figure 2 is a schematic diagram of the structure of the cutting mechanism of the present utility model;

[0022] Figure 3 is a cross-sectional view of the first round roller of the present utility model;

[0023] Figure 4 is Figure 3 the enlarged view of A in

[0024] Figure 5 is a schematic diagram of the limiting plate, the supporting rod and the rotating ring structure of the present utility model.

[0025] In the figure: 1. Mounting frame; 2. Rotating roller; 3. Fixed plate; 4. Lifting electric roller; 5. Cutting mechanism; 51. Fixed frame; 52. First circular roller; 53. Second circular roller; 54. Gear; 55. Motor; 56. Electric push rod; 57. Connecting rod; 58. Vertical rod; 59. Storage groove; 510. U-shaped plate; 511. Cutter; 512. Groove; 513. Limiting plate; 514. Roller; 515. Support rod; 516. Rotating ring; 517. Limiting rod; 6. Mounting plate; 61. Round rod; 7. Slitting knife. Detailed implementation mode

[0026] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0027] During specific implementation: As Figures 1-5 shown, a polyester film cutting device includes: a mounting frame 1, a plurality of rotating rollers 2 are rotatably connected to the inner side of the mounting frame 1, a fixed plate 3 is fixedly connected to the middle of the top end of the mounting frame 1, two lifting electric rollers 4 are installed at the bottom end of the fixed plate 3, a slitting knife 7 is installed at the bottom end of the mounting frame 1, and a cutting mechanism 5 is arranged on one side of the mounting frame 1; wherein, the cutting mechanism 5 includes a fixed frame 51 fixedly connected to one side of the mounting frame 1, a first circular roller 52 and a second circular roller 53 are rotatably connected to the inner wall of the fixed frame 51, one ends of the first circular roller 52 and the second circular roller 53 both penetrate out of the fixed frame 51 and are fixedly connected with gears 54, a motor 55 is fixedly connected to one side of the fixed frame 51, and the other end of one of the gears 54 is fixedly connected with the output shaft of the motor 55. A storage groove 59 is formed on the surface of the first circular roller 52, a U-shaped plate 510 is slidably connected to the inner wall of the storage groove 59, and a cutter 511 is installed inside the U-shaped plate 510.

[0028] The rotating roller 2 is an electric roller. The rotating roller 2, the lifting electric roller 4, and the slitting knife 7 have the same structures as those in the original solution. When slitting the film, place the film on the rotating roller 2, and make one end of the film penetrate through the first circular roller 52 and the second circular roller 53. The surfaces of the first circular roller 52 and the second circular roller 53 are in contact with the surface of the film. Use the lifting electric roller 4 to press the film towards the slitting knife 7, and pull the film from one end of the first circular roller 52 and the second circular roller 53 to make the film taut. The slitting knife 7 will slit the film during the transmission process.

[0029] When the device is in the initial state, the cutter 511 is received in the receiving groove 59. The motor 55 is started through the controller. Under the action of the two gears 54, the first circular roller 52 and the second circular roller 53 will rotate in opposite directions, and the film can be normally conveyed after slitting.

[0030] As Figure 3 shown, the cutting mechanism 5 further includes an electric push rod 56 embedded in the inner wall of the rotating shaft of the first circular roller 52. One end of the electric push rod 56 penetrates into the interior of the first circular roller 52 and is hinged with a connecting rod 57. One side of the top end of the U-shaped plate 510 is fixedly connected with a vertical rod 58. The other end of the vertical rod 58 penetrates into the interior of the first circular roller 52 and is hinged with the other end of the connecting rod 57.

[0031] When the first circular roller 52 conveys the film in the initial state, the cutting surface of the cutter 511 faces downward and is perpendicular to the film.

[0032] According to the length required to cut the film after slitting, the controller sets the number of rotations of the first circular roller 52, so that the electric push rod 56 is automatically started when the set number of rotations is reached. When the set number of rotations is reached, the cutter 511 will be perpendicular to the film again. At this time, when the electric push rod 56 is started, it will push the vertical rod 58 downward through the connecting rod 57, thereby pushing the U-shaped plate 510 to drive the cutter 511 to move downward instantaneously to cut the film. After cutting, the electric push rod 56 automatically closes and drives the cutter 511 to be received in the receiving groove 59 again. When the first circular roller 52 reaches the set number of rotations again, the cutter 511 will perform cutting operations again.

[0033] As Figure 3 and Figure 4 shown, the surface of the second circular roller 53 is provided with a groove 512, and the shape of the groove 512 matches the shape of the cutter 511.

[0034] During the rotation of the first circular roller 52 and the second circular roller 53, the position of the cutter 511 corresponds to the position of the groove 512.

[0035] As Figure 2 and Figure 5 shown, the inner wall of the fixed frame 51 is fixedly connected with two limiting plates 513. An included angle is formed between one side of the limiting plate 513 and the vertical plane. The opposite ends of the two limiting plates 513 are both rotatably connected with equally spaced rollers 514. The gap between the surfaces of the two groups of rollers 514 is the same as the gap between the surfaces of the first circular roller 52 and the second circular roller 53.

[0036] The two limiting plates 513 extend from the inclined sides to between the first round roller 52 and the second round roller 53, without affecting the rotation of the first round roller 52 and the second round roller 53. When conveying the film, the surfaces of the two groups of rollers 514 are in contact with the surface of the film, and the rollers 514 will rotate synchronously. When the cutting knife 511 cuts the slitted film, the two groups of rollers 514 will limit the film.

[0037] As Figure 5 shown, the other side of the fixing frame 51 is fixedly connected with a supporting rod 515, and the overall shape of the supporting rod 515 is U-shaped. The middle part of the surface of the supporting rod 515 is rotatably connected with a rotating ring 516. The horizontal height of the highest end of the rotating ring 516 is the same as the horizontal height of the highest point of the second round roller 53.

[0038] The supporting rod 515 is arranged in the winding direction of the film. During the transmission of the film, the rotating ring 516 will rotate, and the supporting rod 515 and the rotating ring 516 will support the cut film.

[0039] As Figure 3 shown, the other side of the top end of the U-shaped plate 510 is fixedly connected with a limiting rod 517, and the top end of the limiting rod 517 penetrates to the inside of the first round roller 52. The surface of the limiting rod 517 is slidably connected with the inner wall of the first round roller 52. When the U-shaped plate 510 moves up and down, it will drive the limiting rod 517 to move up and down synchronously.

[0040] As Figure 1 shown, one side of the top end of the mounting frame 1 is fixedly connected with two mounting plates 6. Two round rods 61 are rotatably connected between the opposite sides of the two mounting plates 6.

[0041] The two round rods 61 respectively correspond to the two rollers 2 away from the cutting mechanism 5. When the film is placed on the rollers 2, the two round rods 61 will limit it.

[0042] When the utility model is in use, place the film on the rotating roller 2. The two round rods 61 limit the film from the top, so that one end of the film sequentially passes through the two limiting plates 513, the first round roller 52 and the second round roller 53. Use the lifting electric roller 4 to press the film against the slitting knife 7, and pull the film from one end of the first round roller 52 and the second round roller 53 to make the film taut. Start the rotation of the rotating roller 2, the rotation of the lifting electric roller 4 and the motor 55 through the controller, and drive the first round roller 52 and the second round roller 53 to rotate in opposite directions under the action of the two gears 54 to synchronously convey the film. During the conveying process, the slitting knife 7 will slit the film. At the same time, set the number of rotations of the first round roller 52 according to the required cutting length after the film is slit by the controller. When it reaches the number of rotations, automatically start the electric push rod 56. At this time, the electric push rod 56 will push the vertical rod 58 downward through the connecting rod 57, thereby pushing the U-shaped plate 510 to drive the cutting knife 511 to move downward instantaneously to cut the film. After the cutting is completed, the electric push rod 56 automatically closes and drives the cutting knife 511 to be received in the receiving groove 59 again. When the first round roller 52 reaches the set number of rotations again, the cutting knife 511 will perform the cutting operation again. After the cutting is completed, the two limiting plates 513 and the corresponding rollers 514 will limit the film to ensure the normal conveyance of the film when the first round roller 52 and the second round roller 53 continue to rotate.

[0043] It should be noted that in the above description, the electric roller, the lifting electric roller 4, the slitting knife 7, the motor 55, the electric push rod 56, and the cutting knife 511 are all devices with relatively mature applications in the prior art. The specific models can be selected according to actual needs. At the same time, the power supply of the electric roller, the lifting electric roller 4, the motor 55, and the electric push rod 56 can be powered by an internal power supply or by mains power. The specific power supply method is selected according to the situation and will not be elaborated here.

[0044] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A polyester fiber film cutting device, characterized in that, Including: An installation frame (1), on the inner side of the installation frame (1), a plurality of rotating rollers (2) are rotatably connected. In the middle of the top end of the installation frame (1), a fixed plate (3) is fixedly connected. At the bottom end of the fixed plate (3), two lifting electric rollers (4) are installed. At the bottom end of the installation frame (1), a slitting knife (7) is installed. On one side of the installation frame (1), a cutting mechanism (5) is arranged; Among them, the cutting mechanism (5) includes a fixed frame (51) fixedly connected to one side of the installation frame (1). Inside the inner wall of the fixed frame (51), a first circular roller (52) and a second circular roller (53) are rotatably connected. One end of each of the first circular roller (52) and the second circular roller (53) penetrates out of the fixed frame (51) and is fixedly connected with a gear (54). On one side of the fixed frame (51), a motor (55) is fixedly connected. The other end of one of the gears (54) is fixedly connected to the output shaft of the motor (55). A receiving groove (59) is formed on the surface of the first circular roller (52). Inside the inner wall of the receiving groove (59), a U-shaped plate (510) is slidably connected. Inside the U-shaped plate (510), a cutting knife (511) is installed.

2. The polyester fiber film cutting device according to claim 1, characterized in that: The cutting mechanism (5) further includes an electric push rod (56) embedded in the inner wall of the rotating shaft of the first circular roller (52). One end of the electric push rod (56) penetrates into the interior of the first circular roller (52) and is hinged to a connecting rod (57). On one side of the top end of the U-shaped plate (510), a vertical rod (58) is fixedly connected. The other end of the vertical rod (58) penetrates into the interior of the first circular roller (52) and is hinged to the other end of the connecting rod (57).

3. A polyester fiber film cutting device according to claim 1, characterized in that: A groove (512) is formed on the surface of the second circular roller (53). The shape of the groove (512) matches the shape of the cutting knife (511).

4. A polyester fiber film cutting device according to claim 1, characterized in that: On the inner wall of the fixed frame (51), two limiting plates (513) are fixedly connected. An included angle is formed between one side of the limiting plate (513) and the vertical plane.

5. A polyester fiber film cutting device according to claim 4, characterized in that: On the opposite ends of the two limiting plates (513), roller wheels (514) distributed in equal columns are rotatably connected. The gap between the surfaces of the two groups of roller wheels (514) is the same as the gap between the surfaces of the first circular roller (52) and the second circular roller (53).

6. The polyester fiber film cutting device according to claim 1, characterized in that: On the other side of the fixed frame (51), a support rod (515) is fixedly connected. The overall shape of the support rod (515) is U-shaped.

7. A polyester fiber film cutting device according to claim 6, characterized in that: In the middle of the surface of the support rod (515), a rotating ring (516) is rotatably connected.

8. The polyester fiber film cutting device according to claim 1, characterized in that: On the other side of the top end of the U-shaped plate (510), a limiting rod (517) is fixedly connected. The top end of the limiting rod (517) penetrates into the inner side of the first circular roller (52).

9. A polyester fiber film cutting device according to claim 1, characterized in that: On one side of the top end of the installation frame (1), two mounting plates (6) are fixedly connected. Between the opposite sides of the two mounting plates (6), two round rods (61) are rotatably connected.

10. A polyester fiber film cutting device according to claim 7, characterized in that: The horizontal height of the highest end of the rotating ring (516) is the same as the horizontal height of the highest point of the second circular roller (53).

Images