Multi-specification and multi-point-position adaptive PET (polyethylene terephthalate) die cutting mechanism

Abstract

The utility model relates to a multi-specification multi-point-position adaptive PET (Polyethylene Terephthalate) die cutting mechanism which has the specific structure that the multi-specification multi-point-position adaptive PET die cutting mechanism comprises a cutting base and linear cutting modules fixedly arranged on two sides of the cutting base, a supporting plate is connected onto the linear cutting modules in a sliding manner, and a cutting assembly is fixedly connected onto the supporting plate; the cutting assembly comprises a cutting knife body facing the surface of the cutting base, the cutting assembly further comprises a plurality of cutting air cylinders for driving the cutting knife body to move towards the surface of the cutting base, a feeding baffle is fixedly arranged on one side of the cutting base, a feeding port is formed in the feeding baffle, a flattening assembly is arranged on the feeding baffle, and the flattening assembly is arranged on the cutting base. The flattening assembly comprises two flattening blocks which are close to each other, flattening grooves matched with the feeding port are formed in the flattening blocks, the width of the flattening grooves is smaller than that of the feeding port, and by arranging the flattening assembly and the movable cutting assembly, the effect of meeting the cutting requirements of different specifications is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to PET mould cutting technology field, concretely relates to a multi-specification multi-point position adaptation PET mould cutting mechanism. BACKGROUND

[0002] The mobile phone PET film is made of polyester film (PET), mainly used for protecting the mobile phone screen from scratches and slight impact, which is relatively thin, provides basic screen protection, high transparency, and does not affect the screen display.

[0003] In the use process of the mobile phone PET film, the finished film body needs to be cut, generally the film roll is wound down, then the driving mechanism is connected to drive the material belt to flow into the cutting machine, the cutting machine has a cutter that can cut, which can cut the specified position of the material belt, and the long strip of material belt is cut into small film bodies, so as to adapt to the size of the mobile phone and discharge.

[0004] In the cutting process of the mobile phone PET film, different sizes of mobile phones are used, so different specifications of film bodies need to be processed, and the length and width of different specifications of film bodies are different, and the existing cutting scheme cuts the specified position of the cutting machine, if the specification of the PET film roll changes, or needs to be cut from different positions, the cutting machine needs to be replaced to achieve the cutting production effect of the corresponding product, the cost is high, therefore the existing cutting machine cannot adapt to the production of different specifications of PET film. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a cutting machine that can cut different widths and different positions, can cut and process the material belt of PET rolls with different specifications, improve processing efficiency and reduce production cost.

[0006] In order to realize the above purpose, the utility model provides the following technical scheme: a multi-specification multi-point position adaptation PET mould cutting mechanism, including cutting base and fixedly arranged cutting linear module on both sides of the cutting base, the cutting linear module is slidably connected with the supporting plate, the supporting plate is fixedly connected with the cutting assembly, the cutting assembly includes the cutting cutter body towards the surface of the cutting base, the cutting assembly further includes a plurality of cutting cylinders that drive the cutting cutter body to move towards the surface of the cutting base, one side of the cutting base is fixedly provided with the inlet baffle, the inlet baffle is provided with the inlet, the inlet baffle is provided with the flattening assembly, the flattening assembly includes two flattening blocks close to each other, the flattening block is provided with the flattening groove matched with the inlet, and the width of the flattening groove is less than the width of the inlet.

[0007] Preferably, the leveling component further includes a leveling connecting block, a leveling lead screw is disposed through the leveling connecting block, a driving block is slidably connected to the leveling lead screw, driving connecting rods are rotatably connected to both sides of the driving block, and the driving connecting rods are rotatably connected to the top end of the leveling block.

[0008] Preferably, a feeding rod is fixedly connected to one side of the flat block, and the feeding rod extends into the feeding port.

[0009] Preferably, the feed baffle is provided with a flat sliding groove, and a drive sliding rod is fixedly connected to one side of the drive block, the drive sliding rod extending into the flat sliding groove.

[0010] Preferably, the cutting assembly further includes a cutting support fixedly connected to the support plate, a cutting placement plate fixedly connected to the cutting support, and several cutting cylinders fixedly connected to the top of the cutting placement plate. The piston rods of the cutting cylinders pass through the cutting placement plate and are fixedly connected to the top surface of the cutting blade body.

[0011] Preferably, a number of springs are fixedly connected to the bottom of the cutting placement plate. The springs are sleeved on the outside of the piston rod of the cutting cylinder and fixedly connected to the cutting blade body and the cutting placement plate respectively.

[0012] Preferably, a cutting fitting rod is fixedly connected to the bottom of the cutting placement plate, a cutting support plate is fixedly connected to the cutting fitting rod, a cutting groove matching the cutting blade body is provided on the cutting support plate, a cutting guide surface is provided on the cutting groove, and a guide slope is provided on one side of the cutting support plate.

[0013] Preferably, the cutting base is provided with a lifting groove, a lifting plate is slidably connected in the lifting groove, and a lifting cylinder is fixedly connected to the bottom of the lifting plate.

[0014] The beneficial effects of this utility model are as follows:

[0015] 1. Set up a cutting component. The cutting component can slide and extend at different points to cut at different locations, which can meet the cutting process requirements of different film lengths.

[0016] 2. Set up a flattening component. The flattening component can adjust the size of the film before feeding and smooth the surface of the film according to the size, so as to ensure that the film will not have cutting errors due to wrinkles during the cutting process.

[0017] 3. A guiding mechanism is provided to enable continuous cutting, preventing the film from being jammed by gaps on the cutting base, thus facilitating automated cutting. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of a multi-specification, multi-point adaptable PET mold cutting mechanism according to the present invention. Figure 1 ;

[0019] Figure 2 This is a schematic diagram of the structure of a multi-specification, multi-point adaptable PET mold cutting mechanism according to the present invention. Figure 2 ;

[0020] Figure 3 This is a schematic diagram of the structure of a multi-specification, multi-point adaptable PET mold cutting mechanism according to the present invention. Figure 3 ;

[0021] Figure 4 This is a schematic diagram of the structure of a multi-specification, multi-point adaptable PET mold cutting mechanism according to the present invention. Figure 4 .

[0022] In the picture:

[0023] 1. Cutting base; 11. Cutting straight line module; 12. Support plate; 13. Feed baffle; 131. Feed port; 14. Lifting groove; 141. Lifting plate; 142. Lifting cylinder;

[0024] 2. Cutting assembly; 21. Cutting blade body; 22. Cutting cylinder; 23. Cutting support base; 231. Cutting placement plate; 232. Spring; 24. Cutting mating rod; 241. Cutting tray; 242. Cutting tray groove; 243. Cutting guide surface; 244. Guide slope;

[0025] 3. Leveling component; 31. Leveling block; 311. Leveling groove; 32. Leveling connecting block; 33. Leveling lead screw; 331. Drive block; 332. Drive connecting rod; 34. Feed connecting rod; 35. Leveling slide; 351. Drive slide bar. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this utility model.

[0027] refer to Figures 1-4 A cutting base 1 is provided, and a cutting straight line module 11 is provided on both sides of the cutting base 1. The PET film is cut on the cutting base 1. The cutting straight line module 11 is driven by a servo mechanism. A support plate 12 is slidably connected on the cutting straight line module 11. The servo mechanism on the cutting straight line module 11 can drive the support plate 12 to slide on the cutting straight line module 11.

[0028] refer to Figures 1-4A cutting assembly 2 is fixedly connected to the support plate 12. The cutting assembly 2 includes a cutting blade 21 facing the surface of the cutting base 1, with the blade surface of the cutting blade 21 facing the surface of the cutting base 1. The cutting assembly 2 also includes several cutting cylinders 22 that drive the cutting blade 21 to move towards the surface of the cutting base 1. The piston rods of the cutting cylinders 22 drive the cutting blade 21 to move. The cutting assembly 2 also includes a cutting support base 23 fixedly connected to the support plate 12, on which a cutting placement plate 231 is fixedly connected. The cutting cylinder 22 is fixedly connected to the top of the cutting placement plate 231. The piston rod of the cutting cylinder 22 passes through the cutting placement plate 231 and is fixedly connected to the top surface of the cutting blade 21, so that the cutting blade 21 moves perpendicular to the bottom surface of the cutting placement plate 231. Several springs 232 are fixedly connected to the bottom of the cutting placement plate 231. The springs 232 are sleeved on the outside of the piston rod of the cutting cylinder 22 and fixedly connected to the cutting blade 21 and the cutting placement plate 231 respectively. The springs 232 can buffer the cutting process of the cutting blade 21. To prevent excessive rigidity of the cutting blade 21 from damaging the film, the elastic deformation force of the spring 232 increases the return speed of the cutting blade 21 when it retracts after cutting, thus improving cutting efficiency. A cutting mating rod 24 is fixedly connected to the bottom of the cutting placement plate 231, and a cutting support plate 241 is fixedly connected to the cutting mating rod 24. The cutting support plate 241 provides support during cutting, ensuring the accuracy of the cutting blade 21. The cutting support plate 241 has cutting brackets that match the cutting blade 21. The groove 242, the cutting tray 242 can increase the displacement distance of the cutting blade 21 during cutting, and improve the cutting quality. The cutting tray 242 is provided with a cutting guide surface 243, which can guide the PET film strip after cutting when the drive structure drives it to move, so as not to cause the PET film to get stuck. A guide slope 244 is provided on one side of the cutting tray 241. When the external drive structure drives the PET strip to cut, the guide slope 244 can guide the strip onto the cutting tray 241.

[0029] refer to Figures 1-4 A feed baffle 13 is fixedly installed on one side of the cutting base 1. The feed baffle 13 has a feed port 131. The external material belt is fed through the feed port 131 under the drive of the external drive structure.

[0030] refer to Figures 1-4The feed baffle 13 is equipped with a leveling component 3, which includes two close-to-each leveling blocks 31. Each leveling block 31 has a leveling groove 311 that matches the feed inlet 131. When the material is fed, the upper and lower walls of the leveling groove 311 abut against the surface of the material and level the material. The width of the leveling groove 311 is smaller than the width of the feed inlet 131. The leveling component 3 also includes a leveling connecting block 32, through which a leveling screw 33 is threaded. A driving block 331 is slidably connected to the leveling screw 33. Rotation of the leveling screw 33 drives the driving block 331 to slide along the length of the leveling screw 33. The drive link 332 is rotatably connected to both sides and is rotatably connected to the top of the flat block 31. When the drive block 331 moves, it will cause the drive link 332 to tilt at an angle, thereby causing the flat block 31 to move. A feeding link 34 is fixedly connected to one side of the flat block 31. The feeding link 34 extends into the feeding port 131, so that the flat block 31 can move along the length direction of the feeding port 131. A flat sliding groove 35 is provided on the feeding baffle 13. A drive slide rod 351 is fixedly connected to one side of the drive block 331. The drive slide rod 351 extends into the flat sliding groove 35, restricting the sliding direction of the drive block 331 and causing it to slide along the length direction of the flat sliding groove 35.

[0031] refer to Figures 1-4 The cutting base 1 is provided with a lifting groove 14, and a lifting plate 141 is slidably connected in the lifting groove 14. A lifting cylinder 142 is fixedly connected to the bottom of the lifting plate 141. The lifting plate 141 is lifted and lowered by the lifting cylinder 142. When the lifting plate 141 is in the retracted state, it is flush with the surface of the cutting base 1 and will not affect the feeding of the material strip. When an external drive mechanism is needed to drive the material strip to enter under the cutting blade, the lifting cylinder 142 rises and lifts the front end of the material strip to a certain height, so that the material strip can slide along the guide slope 244 to the bottom of the cutting blade body 21.

[0032] The working principle of this mechanism is as follows: During the PET film cutting process, the external rollers are unwound and fed under the drive of the drive device. The end of the strip is transported towards the feed port 131. At this time, according to the specifications of the strip, the electric drive motor above the leveling screw 33 is started, which enables the leveling screw 33 to rotate and drive the drive block 331 to rise or fall, so that the two leveling blocks 31 move closer or further apart, adjusting to a distance suitable for the width of the strip. At this time, the strip passes through the leveling groove 311. The upper and lower walls of the leveling groove 311 smooth the surface of the strip. The smoothed strip is transported to the cutting base 1 through the feed port 131. When the position exceeds the position of the lifting plate 141, the lifting cylinder 142 is activated, lifting the front end of the strip. At this point, the cutting linear module 11 moves towards the material strip and causes the guide slope 244 to pick up the front end of the material strip. After the material strip is transported to the cutting tray 241, the cutting linear module 11 and the external drive mechanism drive simultaneously to align the cutting blade 21 with the part to be cut, and the cutting cylinder 22 is activated. The cutting blade 21 cuts the material into two sections, and the cut-off part is discharged. If further cutting is required, the external drive mechanism and the cutting linear module 11 are activated again to adjust the position of the cutting blade 21, and the cutting is repeated to form a cutting cycle. If the cutting specifications are changed in the cutting process, only the stopping position of the cutting linear module 11 needs to be adjusted, thereby completing the cutting process cycle and being able to adapt to the cutting requirements of different specifications of PET film.

[0033] The above embodiments are used to further illustrate the present invention, but do not limit the present invention to these specific embodiments. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be understood as being within the protection scope of the present invention.

Claims

1. A multi-specification multi-point position adaptive PET mold cutting mechanism, characterized in that: The utility model provides cutting base (1) and fixedly arranged cutting straight line module (11) on both sides of cutting base (1), slidingly connected with support plate (12) on cutting straight line module (11), fixedly connected with cutting assembly (2) on support plate (12), cutting assembly (2) includes cutting cutter body (21) towards the surface of cutting base (1), cutting assembly (2) still includes a plurality of cutting cylinder (22) of driving cutting cutter body (21) movement towards the surface of cutting base (1), one side of cutting base (1) is fixedly arranged with material inlet baffle (13), material inlet baffle (13) is opened with material inlet (131), material inlet baffle (13) is provided with flat assembly (3), flat assembly (3) includes two mutually close flat blocks (31), flat block (31) is opened with flat groove (311) of matching material inlet (131) on, the width of flat groove (311) is less than the width of material inlet (131).

2. A multi-gauge, multi-point PET mold cutting mechanism according to claim 1, characterized in that: Flat assembly (3) still includes flat connecting block (32), flat connecting block (32) is throughly provided with flat screw rod (33), flat screw rod (33) is slidably connected with driving block (331), driving block (331) both sides are rotatably connected with driving link (332), driving link (332) and the top of flat block (31) rotatably connected.

3. A multi-gauge, multi-point PET mold cutting mechanism according to claim 2, characterized in that: One side of flat block (31) is fixedly connected with material inlet connecting rod (34), and material inlet connecting rod (34) extends into material inlet (131).

4. A multi-gauge, multi-point PET mold cutting mechanism according to claim 2, characterized in that: Material inlet baffle (13) is opened with flat sliding slot (35), one side of driving block (331) is fixedly connected with driving sliding rod (351), and driving sliding rod (351) extends into flat sliding slot (35).

5. A multi-gauge, multi-point PET mold cutting mechanism according to claim 1, characterized in that: Cutting assembly (2) still includes cutting support base (23) fixedly connected on support plate (12), cutting support base (23) is fixedly connected with cutting placement plate (231), a plurality of cutting cylinder (22) are fixedly connected on the top of cutting placement plate (231), the piston rod of cutting cylinder (22) passes through cutting placement plate (231) and is fixedly connected with the top surface of cutting cutter body (21).

6. A multi-gauge, multi-point PET mold cutting mechanism according to claim 5, characterized in that: The bottom of cutting placement plate (231) is fixedly connected with a plurality of springs (232), the spring (232) is sleeved on the outer side of the piston rod of cutting cylinder (22) and is fixedly connected between cutting cutter body (21) and cutting placement plate (231) respectively.

7. A multi-gauge, multi-point PET mold cutting mechanism according to claim 5, characterized in that: The bottom of cutting placement plate (231) is fixedly connected with cutting matching rod (24), cutting matching rod (24) is fixedly connected with cutting support plate (241), cutting support plate (241) is opened with cutting support groove (242) of matching cutting cutter body (21), cutting support groove (242) is opened with cutting guide surface (243), one side of cutting support plate (241) is opened with guide inclined plane (244).

8. A multi-gauge, multi-point PET mold cutting mechanism according to claim 1, characterized in that: The cutting base (1) is provided with a lifting groove (14), a lifting plate (141) is slidably connected in the lifting groove (14), and the bottom of the lifting plate (141) is fixedly connected with a lifting cylinder (142).

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